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Finding the Fourth Proportional to 652,161.70, 978,242.55 and 577,366.30

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Solution

The fourth proportional to 652,161.70, 978,242.55 and 577,366.30 is: 866,049.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,161.70 : 978,242.55 = 577,366.30 : x
  2. Step 2: Convert to fraction form
    652,161.70/978,242.55 = 577,366.30/x
  3. Step 3: Cross multiply
    652,161.70x = 978,242.55 × 577,366.30
  4. Step 4: Simplify right side
    652,161.70x = 564,804,281,596.07
  5. Step 5: Solve for x
    x = 564,804,281,596.07/652,161.70
  6. Step 6: Final answer
    x = 866,049.45

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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.