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Finding the Fourth Proportional to 676,039.50, 932,963.70 and 374,233.50

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Solution

The fourth proportional to 676,039.50, 932,963.70 and 374,233.50 is: 516,458.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,039.50 : 932,963.70 = 374,233.50 : x
  2. Step 2: Convert to fraction form
    676,039.50/932,963.70 = 374,233.50/x
  3. Step 3: Cross multiply
    676,039.50x = 932,963.70 × 374,233.50
  4. Step 4: Simplify right side
    676,039.50x = 349,146,270,823.95
  5. Step 5: Solve for x
    x = 349,146,270,823.95/676,039.50
  6. Step 6: Final answer
    x = 516,458.39

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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.