Home / 1,452,190.30-2,178,285.45-505,246.30

Finding the Fourth Proportional to 1,452,190.30, 2,178,285.45 and 505,246.30

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Solution

The fourth proportional to 1,452,190.30, 2,178,285.45 and 505,246.30 is: 757,869.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,452,190.30 : 2,178,285.45 = 505,246.30 : x
  2. Step 2: Convert to fraction form
    1,452,190.30/2,178,285.45 = 505,246.30/x
  3. Step 3: Cross multiply
    1,452,190.30x = 2,178,285.45 × 505,246.30
  4. Step 4: Simplify right side
    1,452,190.30x = 1,100,570,663,956.34
  5. Step 5: Solve for x
    x = 1,100,570,663,956.34/1,452,190.30
  6. Step 6: Final answer
    x = 757,869.45

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Half scale
Find fourth proportional to 2,904,380.60, 4,356,570.90 and 1,010,492.60
Double scale
Find fourth proportional to 1,452,191.30, 2,178,286.95 and 505,247.30
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.