Home / 656,215-905,970.36-430,254.16

Finding the Fourth Proportional to 656,215, 905,970.36 and 430,254.16

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Solution

The fourth proportional to 656,215, 905,970.36 and 430,254.16 is: 594,008.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,215 : 905,970.36 = 430,254.16 : x
  2. Step 2: Convert to fraction form
    656,215/905,970.36 = 430,254.16/x
  3. Step 3: Cross multiply
    656,215x = 905,970.36 × 430,254.16
  4. Step 4: Simplify right side
    656,215x = 389,797,516,226.70
  5. Step 5: Solve for x
    x = 389,797,516,226.70/656,215
  6. Step 6: Final answer
    x = 594,008.85

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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.