Home / 527,132.28-727,443.96-285,417.84

Finding the Fourth Proportional to 527,132.28, 727,443.96 and 285,417.84

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Solution

The fourth proportional to 527,132.28, 727,443.96 and 285,417.84 is: 393,877.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,132.28 : 727,443.96 = 285,417.84 : x
  2. Step 2: Convert to fraction form
    527,132.28/727,443.96 = 285,417.84/x
  3. Step 3: Cross multiply
    527,132.28x = 727,443.96 × 285,417.84
  4. Step 4: Simplify right side
    527,132.28x = 207,625,483,784.25
  5. Step 5: Solve for x
    x = 207,625,483,784.25/527,132.28
  6. Step 6: Final answer
    x = 393,877.38

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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.