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Finding the Fourth Proportional to 667,053.93, 920,527.84 and 361,122.23

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Solution

The fourth proportional to 667,053.93, 920,527.84 and 361,122.23 is: 498,345.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,053.93 : 920,527.84 = 361,122.23 : x
  2. Step 2: Convert to fraction form
    667,053.93/920,527.84 = 361,122.23/x
  3. Step 3: Cross multiply
    667,053.93x = 920,527.84 × 361,122.23
  4. Step 4: Simplify right side
    667,053.93x = 332,423,069,110.61
  5. Step 5: Solve for x
    x = 332,423,069,110.61/667,053.93
  6. Step 6: Final answer
    x = 498,345.11

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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.