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Finding the Fourth Proportional to 676,874.45, 933,839.61 and 404,950.16

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Solution

The fourth proportional to 676,874.45, 933,839.61 and 404,950.16 is: 558,683.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,874.45 : 933,839.61 = 404,950.16 : x
  2. Step 2: Convert to fraction form
    676,874.45/933,839.61 = 404,950.16/x
  3. Step 3: Cross multiply
    676,874.45x = 933,839.61 × 404,950.16
  4. Step 4: Simplify right side
    676,874.45x = 378,158,499,483.84
  5. Step 5: Solve for x
    x = 378,158,499,483.84/676,874.45
  6. Step 6: Final answer
    x = 558,683.37

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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.