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Finding the Fourth Proportional to 374,400.48, 516,901.59 and 243,702.66

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Solution

The fourth proportional to 374,400.48, 516,901.59 and 243,702.66 is: 336,458.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,400.48 : 516,901.59 = 243,702.66 : x
  2. Step 2: Convert to fraction form
    374,400.48/516,901.59 = 243,702.66/x
  3. Step 3: Cross multiply
    374,400.48x = 516,901.59 × 243,702.66
  4. Step 4: Simplify right side
    374,400.48x = 125,970,292,441.23
  5. Step 5: Solve for x
    x = 125,970,292,441.23/374,400.48
  6. Step 6: Final answer
    x = 336,458.68

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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.