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Finding the Fourth Proportional to 585,020.70, 877,531.05 and 519,702.30

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Solution

The fourth proportional to 585,020.70, 877,531.05 and 519,702.30 is: 779,553.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,020.70 : 877,531.05 = 519,702.30 : x
  2. Step 2: Convert to fraction form
    585,020.70/877,531.05 = 519,702.30/x
  3. Step 3: Cross multiply
    585,020.70x = 877,531.05 × 519,702.30
  4. Step 4: Simplify right side
    585,020.70x = 456,054,905,006.42
  5. Step 5: Solve for x
    x = 456,054,905,006.42/585,020.70
  6. Step 6: Final answer
    x = 779,553.45

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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.