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Finding the Fourth Proportional to 452,821.80, 679,232.70 and 406,165.80

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Solution

The fourth proportional to 452,821.80, 679,232.70 and 406,165.80 is: 609,248.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,821.80 : 679,232.70 = 406,165.80 : x
  2. Step 2: Convert to fraction form
    452,821.80/679,232.70 = 406,165.80/x
  3. Step 3: Cross multiply
    452,821.80x = 679,232.70 × 406,165.80
  4. Step 4: Simplify right side
    452,821.80x = 275,881,092,981.66
  5. Step 5: Solve for x
    x = 275,881,092,981.66/452,821.80
  6. Step 6: Final answer
    x = 609,248.70

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Similar ratio
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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.