Home / 515,033.28-710,735.04-288,673.92

Finding the Fourth Proportional to 515,033.28, 710,735.04 and 288,673.92

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Solution

The fourth proportional to 515,033.28, 710,735.04 and 288,673.92 is: 398,363.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,033.28 : 710,735.04 = 288,673.92 : x
  2. Step 2: Convert to fraction form
    515,033.28/710,735.04 = 288,673.92/x
  3. Step 3: Cross multiply
    515,033.28x = 710,735.04 × 288,673.92
  4. Step 4: Simplify right side
    515,033.28x = 205,170,670,078.16
  5. Step 5: Solve for x
    x = 205,170,670,078.16/515,033.28
  6. Step 6: Final answer
    x = 398,363.91

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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.