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Finding the Fourth Proportional to 658,788.92, 908,794.84 and 416,663.72

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Solution

The fourth proportional to 658,788.92, 908,794.84 and 416,663.72 is: 574,784.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,788.92 : 908,794.84 = 416,663.72 : x
  2. Step 2: Convert to fraction form
    658,788.92/908,794.84 = 416,663.72/x
  3. Step 3: Cross multiply
    658,788.92x = 908,794.84 × 416,663.72
  4. Step 4: Simplify right side
    658,788.92x = 378,661,838,751.21
  5. Step 5: Solve for x
    x = 378,661,838,751.21/658,788.92
  6. Step 6: Final answer
    x = 574,784.77

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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.