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Finding the Fourth Proportional to 671,919.47, 927,248.92 and 370,113.47

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Solution

The fourth proportional to 671,919.47, 927,248.92 and 370,113.47 is: 510,756.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,919.47 : 927,248.92 = 370,113.47 : x
  2. Step 2: Convert to fraction form
    671,919.47/927,248.92 = 370,113.47/x
  3. Step 3: Cross multiply
    671,919.47x = 927,248.92 × 370,113.47
  4. Step 4: Simplify right side
    671,919.47x = 343,187,313,250.61
  5. Step 5: Solve for x
    x = 343,187,313,250.61/671,919.47
  6. Step 6: Final answer
    x = 510,756.61

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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.