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Finding the Fourth Proportional to 625,314.39, 937,971.95 and 439,156.95

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Solution

The fourth proportional to 625,314.39, 937,971.95 and 439,156.95 is: 658,735.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,314.39 : 937,971.95 = 439,156.95 : x
  2. Step 2: Convert to fraction form
    625,314.39/937,971.95 = 439,156.95/x
  3. Step 3: Cross multiply
    625,314.39x = 937,971.95 × 439,156.95
  4. Step 4: Simplify right side
    625,314.39x = 411,916,898,551.77
  5. Step 5: Solve for x
    x = 411,916,898,551.77/625,314.39
  6. Step 6: Final answer
    x = 658,735.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.