Home / 769,678.12-1,062,188.60-430,146.36

Finding the Fourth Proportional to 769,678.12, 1,062,188.60 and 430,146.36

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Solution

The fourth proportional to 769,678.12, 1,062,188.60 and 430,146.36 is: 593,620.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,678.12 : 1,062,188.60 = 430,146.36 : x
  2. Step 2: Convert to fraction form
    769,678.12/1,062,188.60 = 430,146.36/x
  3. Step 3: Cross multiply
    769,678.12x = 1,062,188.60 × 430,146.36
  4. Step 4: Simplify right side
    769,678.12x = 456,896,559,923.50
  5. Step 5: Solve for x
    x = 456,896,559,923.50/769,678.12
  6. Step 6: Final answer
    x = 593,620.30

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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.