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Finding the Fourth Proportional to 527,927.88, 728,545.60 and 286,209.84

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Solution

The fourth proportional to 527,927.88, 728,545.60 and 286,209.84 is: 394,972.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,927.88 : 728,545.60 = 286,209.84 : x
  2. Step 2: Convert to fraction form
    527,927.88/728,545.60 = 286,209.84/x
  3. Step 3: Cross multiply
    527,927.88x = 728,545.60 × 286,209.84
  4. Step 4: Simplify right side
    527,927.88x = 208,516,919,608.70
  5. Step 5: Solve for x
    x = 208,516,919,608.70/527,927.88
  6. Step 6: Final answer
    x = 394,972.36

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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.