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Finding the Fourth Proportional to 676,451.80, 933,501.54 and 374,645.80

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Solution

The fourth proportional to 676,451.80, 933,501.54 and 374,645.80 is: 517,010.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,451.80 : 933,501.54 = 374,645.80 : x
  2. Step 2: Convert to fraction form
    676,451.80/933,501.54 = 374,645.80/x
  3. Step 3: Cross multiply
    676,451.80x = 933,501.54 × 374,645.80
  4. Step 4: Simplify right side
    676,451.80x = 349,732,431,254.53
  5. Step 5: Solve for x
    x = 349,732,431,254.53/676,451.80
  6. Step 6: Final answer
    x = 517,010.13

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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.