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Finding the Fourth Proportional to 888,992.91, 1,226,678.30 and 539,951.81

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Solution

The fourth proportional to 888,992.91, 1,226,678.30 and 539,951.81 is: 745,053.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,992.91 : 1,226,678.30 = 539,951.81 : x
  2. Step 2: Convert to fraction form
    888,992.91/1,226,678.30 = 539,951.81/x
  3. Step 3: Cross multiply
    888,992.91x = 1,226,678.30 × 539,951.81
  4. Step 4: Simplify right side
    888,992.91x = 662,347,168,372.72
  5. Step 5: Solve for x
    x = 662,347,168,372.72/888,992.91
  6. Step 6: Final answer
    x = 745,053.38

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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.