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Finding the Fourth Proportional to 539,000.28, 808,488.27 and 219,151.53

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Solution

The fourth proportional to 539,000.28, 808,488.27 and 219,151.53 is: 328,722.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,000.28 : 808,488.27 = 219,151.53 : x
  2. Step 2: Convert to fraction form
    539,000.28/808,488.27 = 219,151.53/x
  3. Step 3: Cross multiply
    539,000.28x = 808,488.27 × 219,151.53
  4. Step 4: Simplify right side
    539,000.28x = 177,181,441,357.55
  5. Step 5: Solve for x
    x = 177,181,441,357.55/539,000.28
  6. Step 6: Final answer
    x = 328,722.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.