Home / 377,728.56-521,267.40-207,962.76

Finding the Fourth Proportional to 377,728.56, 521,267.40 and 207,962.76

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Solution

The fourth proportional to 377,728.56, 521,267.40 and 207,962.76 is: 286,989.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,728.56 : 521,267.40 = 207,962.76 : x
  2. Step 2: Convert to fraction form
    377,728.56/521,267.40 = 207,962.76/x
  3. Step 3: Cross multiply
    377,728.56x = 521,267.40 × 207,962.76
  4. Step 4: Simplify right side
    377,728.56x = 108,404,207,202.02
  5. Step 5: Solve for x
    x = 108,404,207,202.02/377,728.56
  6. Step 6: Final answer
    x = 286,989.70

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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.