Home / 377,542.16-521,011.86-207,780.20

Finding the Fourth Proportional to 377,542.16, 521,011.86 and 207,780.20

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Solution

The fourth proportional to 377,542.16, 521,011.86 and 207,780.20 is: 286,738.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,542.16 : 521,011.86 = 207,780.20 : x
  2. Step 2: Convert to fraction form
    377,542.16/521,011.86 = 207,780.20/x
  3. Step 3: Cross multiply
    377,542.16x = 521,011.86 × 207,780.20
  4. Step 4: Simplify right side
    377,542.16x = 108,255,948,473.17
  5. Step 5: Solve for x
    x = 108,255,948,473.17/377,542.16
  6. Step 6: Final answer
    x = 286,738.70

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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.