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Finding the Fourth Proportional to 472,345.92, 707,391.36 and 261,460.80

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Solution

The fourth proportional to 472,345.92, 707,391.36 and 261,460.80 is: 391,567.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,345.92 : 707,391.36 = 261,460.80 : x
  2. Step 2: Convert to fraction form
    472,345.92/707,391.36 = 261,460.80/x
  3. Step 3: Cross multiply
    472,345.92x = 707,391.36 × 261,460.80
  4. Step 4: Simplify right side
    472,345.92x = 184,955,110,898.69
  5. Step 5: Solve for x
    x = 184,955,110,898.69/472,345.92
  6. Step 6: Final answer
    x = 391,567.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.