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Finding the Fourth Proportional to 525,702.40, 787,646.40 and 244,643.20

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Solution

The fourth proportional to 525,702.40, 787,646.40 and 244,643.20 is: 366,542.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,702.40 : 787,646.40 = 244,643.20 : x
  2. Step 2: Convert to fraction form
    525,702.40/787,646.40 = 244,643.20/x
  3. Step 3: Cross multiply
    525,702.40x = 787,646.40 × 244,643.20
  4. Step 4: Simplify right side
    525,702.40x = 192,692,335,764.48
  5. Step 5: Solve for x
    x = 192,692,335,764.48/525,702.40
  6. Step 6: Final answer
    x = 366,542.62

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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.