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Finding the Fourth Proportional to 677,949.60, 935,567.84 and 372,031.12

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Solution

The fourth proportional to 677,949.60, 935,567.84 and 372,031.12 is: 513,401.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,949.60 : 935,567.84 = 372,031.12 : x
  2. Step 2: Convert to fraction form
    677,949.60/935,567.84 = 372,031.12/x
  3. Step 3: Cross multiply
    677,949.60x = 935,567.84 × 372,031.12
  4. Step 4: Simplify right side
    677,949.60x = 348,060,351,351.18
  5. Step 5: Solve for x
    x = 348,060,351,351.18/677,949.60
  6. Step 6: Final answer
    x = 513,401.51

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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.