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Finding the Fourth Proportional to 536,742.72, 740,689.92 and 295,025.76

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Solution

The fourth proportional to 536,742.72, 740,689.92 and 295,025.76 is: 407,127.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,742.72 : 740,689.92 = 295,025.76 : x
  2. Step 2: Convert to fraction form
    536,742.72/740,689.92 = 295,025.76/x
  3. Step 3: Cross multiply
    536,742.72x = 740,689.92 × 295,025.76
  4. Step 4: Simplify right side
    536,742.72x = 218,522,606,572.34
  5. Step 5: Solve for x
    x = 218,522,606,572.34/536,742.72
  6. Step 6: Final answer
    x = 407,127.29

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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.