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Finding the Fourth Proportional to 535,624.90, 801,882.15 and 520,072.90

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Solution

The fourth proportional to 535,624.90, 801,882.15 and 520,072.90 is: 778,599.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,624.90 : 801,882.15 = 520,072.90 : x
  2. Step 2: Convert to fraction form
    535,624.90/801,882.15 = 520,072.90/x
  3. Step 3: Cross multiply
    535,624.90x = 801,882.15 × 520,072.90
  4. Step 4: Simplify right side
    535,624.90x = 417,037,175,208.74
  5. Step 5: Solve for x
    x = 417,037,175,208.74/535,624.90
  6. Step 6: Final answer
    x = 778,599.31

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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.