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Finding the Fourth Proportional to 676,203.50, 933,190 and 374,397.50

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Solution

The fourth proportional to 676,203.50, 933,190 and 374,397.50 is: 516,684.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,203.50 : 933,190 = 374,397.50 : x
  2. Step 2: Convert to fraction form
    676,203.50/933,190 = 374,397.50/x
  3. Step 3: Cross multiply
    676,203.50x = 933,190 × 374,397.50
  4. Step 4: Simplify right side
    676,203.50x = 349,384,003,025
  5. Step 5: Solve for x
    x = 349,384,003,025/676,203.50
  6. Step 6: Final answer
    x = 516,684.70

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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.