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Finding the Fourth Proportional to 573,185.31, 791,805.20 and 459,220.74

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Solution

The fourth proportional to 573,185.31, 791,805.20 and 459,220.74 is: 634,373.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,185.31 : 791,805.20 = 459,220.74 : x
  2. Step 2: Convert to fraction form
    573,185.31/791,805.20 = 459,220.74/x
  3. Step 3: Cross multiply
    573,185.31x = 791,805.20 × 459,220.74
  4. Step 4: Simplify right side
    573,185.31x = 363,613,369,879.85
  5. Step 5: Solve for x
    x = 363,613,369,879.85/573,185.31
  6. Step 6: Final answer
    x = 634,373.15

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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.