Home / 688,340.16-1,032,354.54-261,723.78

Finding the Fourth Proportional to 688,340.16, 1,032,354.54 and 261,723.78

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Solution

The fourth proportional to 688,340.16, 1,032,354.54 and 261,723.78 is: 392,526.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,340.16 : 1,032,354.54 = 261,723.78 : x
  2. Step 2: Convert to fraction form
    688,340.16/1,032,354.54 = 261,723.78/x
  3. Step 3: Cross multiply
    688,340.16x = 1,032,354.54 × 261,723.78
  4. Step 4: Simplify right side
    688,340.16x = 270,191,732,508.96
  5. Step 5: Solve for x
    x = 270,191,732,508.96/688,340.16
  6. Step 6: Final answer
    x = 392,526.47

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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.