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Finding the Fourth Proportional to 529,543.75, 731,122.28 and 406,817.56

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Solution

The fourth proportional to 529,543.75, 731,122.28 and 406,817.56 is: 561,678.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,543.75 : 731,122.28 = 406,817.56 : x
  2. Step 2: Convert to fraction form
    529,543.75/731,122.28 = 406,817.56/x
  3. Step 3: Cross multiply
    529,543.75x = 731,122.28 × 406,817.56
  4. Step 4: Simplify right side
    529,543.75x = 297,433,380,592.40
  5. Step 5: Solve for x
    x = 297,433,380,592.40/529,543.75
  6. Step 6: Final answer
    x = 561,678.58

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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.