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Finding the Fourth Proportional to 610,543.15, 842,601.32 and 338,698.65

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Solution

The fourth proportional to 610,543.15, 842,601.32 and 338,698.65 is: 467,432.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,543.15 : 842,601.32 = 338,698.65 : x
  2. Step 2: Convert to fraction form
    610,543.15/842,601.32 = 338,698.65/x
  3. Step 3: Cross multiply
    610,543.15x = 842,601.32 × 338,698.65
  4. Step 4: Simplify right side
    610,543.15x = 285,387,929,572.22
  5. Step 5: Solve for x
    x = 285,387,929,572.22/610,543.15
  6. Step 6: Final answer
    x = 467,432.86

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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.