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Finding the Fourth Proportional to 556,416.70, 834,625.05 and 534,643.90

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Solution

The fourth proportional to 556,416.70, 834,625.05 and 534,643.90 is: 801,965.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,416.70 : 834,625.05 = 534,643.90 : x
  2. Step 2: Convert to fraction form
    556,416.70/834,625.05 = 534,643.90/x
  3. Step 3: Cross multiply
    556,416.70x = 834,625.05 × 534,643.90
  4. Step 4: Simplify right side
    556,416.70x = 446,227,191,769.70
  5. Step 5: Solve for x
    x = 446,227,191,769.70/556,416.70
  6. Step 6: Final answer
    x = 801,965.85

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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.