Home / 428,966.61-591,973.90-237,981.36

Finding the Fourth Proportional to 428,966.61, 591,973.90 and 237,981.36

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Solution

The fourth proportional to 428,966.61, 591,973.90 and 237,981.36 is: 328,414.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,966.61 : 591,973.90 = 237,981.36 : x
  2. Step 2: Convert to fraction form
    428,966.61/591,973.90 = 237,981.36/x
  3. Step 3: Cross multiply
    428,966.61x = 591,973.90 × 237,981.36
  4. Step 4: Simplify right side
    428,966.61x = 140,878,753,806.50
  5. Step 5: Solve for x
    x = 140,878,753,806.50/428,966.61
  6. Step 6: Final answer
    x = 328,414.26

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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.