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Finding the Fourth Proportional to 527,341.76, 727,725.84 and 285,618.32

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Solution

The fourth proportional to 527,341.76, 727,725.84 and 285,618.32 is: 394,150.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,341.76 : 727,725.84 = 285,618.32 : x
  2. Step 2: Convert to fraction form
    527,341.76/727,725.84 = 285,618.32/x
  3. Step 3: Cross multiply
    527,341.76x = 727,725.84 × 285,618.32
  4. Step 4: Simplify right side
    527,341.76x = 207,851,831,841.39
  5. Step 5: Solve for x
    x = 207,851,831,841.39/527,341.76
  6. Step 6: Final answer
    x = 394,150.15

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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.