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Finding the Fourth Proportional to 366,857.20, 549,364.20 and 293,129.20

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Solution

The fourth proportional to 366,857.20, 549,364.20 and 293,129.20 is: 438,957.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,857.20 : 549,364.20 = 293,129.20 : x
  2. Step 2: Convert to fraction form
    366,857.20/549,364.20 = 293,129.20/x
  3. Step 3: Cross multiply
    366,857.20x = 549,364.20 × 293,129.20
  4. Step 4: Simplify right side
    366,857.20x = 161,034,688,454.64
  5. Step 5: Solve for x
    x = 161,034,688,454.64/366,857.20
  6. Step 6: Final answer
    x = 438,957.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.