Home / 638,750.20-881,437.22-366,862.36

Finding the Fourth Proportional to 638,750.20, 881,437.22 and 366,862.36

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Solution

The fourth proportional to 638,750.20, 881,437.22 and 366,862.36 is: 506,248.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,750.20 : 881,437.22 = 366,862.36 : x
  2. Step 2: Convert to fraction form
    638,750.20/881,437.22 = 366,862.36/x
  3. Step 3: Cross multiply
    638,750.20x = 881,437.22 × 366,862.36
  4. Step 4: Simplify right side
    638,750.20x = 323,366,138,721.04
  5. Step 5: Solve for x
    x = 323,366,138,721.04/638,750.20
  6. Step 6: Final answer
    x = 506,248.20

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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.