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Finding the Fourth Proportional to 652,153.80, 978,230.70 and 561,952.20

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Solution

The fourth proportional to 652,153.80, 978,230.70 and 561,952.20 is: 842,928.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,153.80 : 978,230.70 = 561,952.20 : x
  2. Step 2: Convert to fraction form
    652,153.80/978,230.70 = 561,952.20/x
  3. Step 3: Cross multiply
    652,153.80x = 978,230.70 × 561,952.20
  4. Step 4: Simplify right side
    652,153.80x = 549,718,893,972.54
  5. Step 5: Solve for x
    x = 549,718,893,972.54/652,153.80
  6. Step 6: Final answer
    x = 842,928.30

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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.