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Finding the Fourth Proportional to 677,881.68, 935,494.08 and 371,971.20

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Solution

The fourth proportional to 677,881.68, 935,494.08 and 371,971.20 is: 513,329.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,881.68 : 935,494.08 = 371,971.20 : x
  2. Step 2: Convert to fraction form
    677,881.68/935,494.08 = 371,971.20/x
  3. Step 3: Cross multiply
    677,881.68x = 935,494.08 × 371,971.20
  4. Step 4: Simplify right side
    677,881.68x = 347,976,855,530.50
  5. Step 5: Solve for x
    x = 347,976,855,530.50/677,881.68
  6. Step 6: Final answer
    x = 513,329.78

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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.