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Finding the Fourth Proportional to 942,516, 1,300,662 and 560,534.40

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Solution

The fourth proportional to 942,516, 1,300,662 and 560,534.40 is: 773,531.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,516 : 1,300,662 = 560,534.40 : x
  2. Step 2: Convert to fraction form
    942,516/1,300,662 = 560,534.40/x
  3. Step 3: Cross multiply
    942,516x = 1,300,662 × 560,534.40
  4. Step 4: Simplify right side
    942,516x = 729,065,793,772.80
  5. Step 5: Solve for x
    x = 729,065,793,772.80/942,516
  6. Step 6: Final answer
    x = 773,531.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.