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Finding the Fourth Proportional to 573,314.80, 859,972.20 and 511,313.35

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Solution

The fourth proportional to 573,314.80, 859,972.20 and 511,313.35 is: 766,970.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,314.80 : 859,972.20 = 511,313.35 : x
  2. Step 2: Convert to fraction form
    573,314.80/859,972.20 = 511,313.35/x
  3. Step 3: Cross multiply
    573,314.80x = 859,972.20 × 511,313.35
  4. Step 4: Simplify right side
    573,314.80x = 439,715,266,488.87
  5. Step 5: Solve for x
    x = 439,715,266,488.87/573,314.80
  6. Step 6: Final answer
    x = 766,970.03

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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.