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Finding the Fourth Proportional to 688,575.86, 950,174.10 and 382,632.80

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Solution

The fourth proportional to 688,575.86, 950,174.10 and 382,632.80 is: 527,999.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,575.86 : 950,174.10 = 382,632.80 : x
  2. Step 2: Convert to fraction form
    688,575.86/950,174.10 = 382,632.80/x
  3. Step 3: Cross multiply
    688,575.86x = 950,174.10 × 382,632.80
  4. Step 4: Simplify right side
    688,575.86x = 363,567,776,370.48
  5. Step 5: Solve for x
    x = 363,567,776,370.48/688,575.86
  6. Step 6: Final answer
    x = 527,999.60

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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.