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Finding the Fourth Proportional to 527,275.66, 727,636.32 and 285,552.63

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Solution

The fourth proportional to 527,275.66, 727,636.32 and 285,552.63 is: 394,060.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,275.66 : 727,636.32 = 285,552.63 : x
  2. Step 2: Convert to fraction form
    527,275.66/727,636.32 = 285,552.63/x
  3. Step 3: Cross multiply
    527,275.66x = 727,636.32 × 285,552.63
  4. Step 4: Simplify right side
    527,275.66x = 207,778,459,793.58
  5. Step 5: Solve for x
    x = 207,778,459,793.58/527,275.66
  6. Step 6: Final answer
    x = 394,060.40

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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.