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Finding the Fourth Proportional to 527,114.76, 727,371.51 and 312,220.14

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Solution

The fourth proportional to 527,114.76, 727,371.51 and 312,220.14 is: 430,836.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,114.76 : 727,371.51 = 312,220.14 : x
  2. Step 2: Convert to fraction form
    527,114.76/727,371.51 = 312,220.14/x
  3. Step 3: Cross multiply
    527,114.76x = 727,371.51 × 312,220.14
  4. Step 4: Simplify right side
    527,114.76x = 227,100,034,684.21
  5. Step 5: Solve for x
    x = 227,100,034,684.21/527,114.76
  6. Step 6: Final answer
    x = 430,836.04

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Double scale
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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.