Home / 1,134,011.28-1,565,006.40-624,713.60

Finding the Fourth Proportional to 1,134,011.28, 1,565,006.40 and 624,713.60

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Solution

The fourth proportional to 1,134,011.28, 1,565,006.40 and 624,713.60 is: 862,143.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,134,011.28 : 1,565,006.40 = 624,713.60 : x
  2. Step 2: Convert to fraction form
    1,134,011.28/1,565,006.40 = 624,713.60/x
  3. Step 3: Cross multiply
    1,134,011.28x = 1,565,006.40 × 624,713.60
  4. Step 4: Simplify right side
    1,134,011.28x = 977,680,782,167.04
  5. Step 5: Solve for x
    x = 977,680,782,167.04/1,134,011.28
  6. Step 6: Final answer
    x = 862,143.79

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.