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Finding the Fourth Proportional to 292,445.70, 438,668.55 and 273,200.10

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Solution

The fourth proportional to 292,445.70, 438,668.55 and 273,200.10 is: 409,800.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,445.70 : 438,668.55 = 273,200.10 : x
  2. Step 2: Convert to fraction form
    292,445.70/438,668.55 = 273,200.10/x
  3. Step 3: Cross multiply
    292,445.70x = 438,668.55 × 273,200.10
  4. Step 4: Simplify right side
    292,445.70x = 119,844,291,726.86
  5. Step 5: Solve for x
    x = 119,844,291,726.86/292,445.70
  6. Step 6: Final answer
    x = 409,800.15

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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.