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Finding the Fourth Proportional to 669,053.80, 922,874.27 and 396,929.03

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Solution

The fourth proportional to 669,053.80, 922,874.27 and 396,929.03 is: 547,512.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,053.80 : 922,874.27 = 396,929.03 : x
  2. Step 2: Convert to fraction form
    669,053.80/922,874.27 = 396,929.03/x
  3. Step 3: Cross multiply
    669,053.80x = 922,874.27 × 396,929.03
  4. Step 4: Simplify right side
    669,053.80x = 366,315,589,125.60
  5. Step 5: Solve for x
    x = 366,315,589,125.60/669,053.80
  6. Step 6: Final answer
    x = 547,512.91

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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.