Home / 639,547.92-959,517.36-383,664.06

Finding the Fourth Proportional to 639,547.92, 959,517.36 and 383,664.06

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Solution

The fourth proportional to 639,547.92, 959,517.36 and 383,664.06 is: 575,613.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,547.92 : 959,517.36 = 383,664.06 : x
  2. Step 2: Convert to fraction form
    639,547.92/959,517.36 = 383,664.06/x
  3. Step 3: Cross multiply
    639,547.92x = 959,517.36 × 383,664.06
  4. Step 4: Simplify right side
    639,547.92x = 368,132,325,978.08
  5. Step 5: Solve for x
    x = 368,132,325,978.08/639,547.92
  6. Step 6: Final answer
    x = 575,613.36

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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.