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Finding the Fourth Proportional to 527,339.76, 727,723.08 and 285,616.32

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Solution

The fourth proportional to 527,339.76, 727,723.08 and 285,616.32 is: 394,147.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,339.76 : 727,723.08 = 285,616.32 : x
  2. Step 2: Convert to fraction form
    527,339.76/727,723.08 = 285,616.32/x
  3. Step 3: Cross multiply
    527,339.76x = 727,723.08 × 285,616.32
  4. Step 4: Simplify right side
    527,339.76x = 207,849,588,088.67
  5. Step 5: Solve for x
    x = 207,849,588,088.67/527,339.76
  6. Step 6: Final answer
    x = 394,147.39

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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.