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Finding the Fourth Proportional to 690,552.80, 1,034,274 and 353,696.48

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Solution

The fourth proportional to 690,552.80, 1,034,274 and 353,696.48 is: 529,748.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,552.80 : 1,034,274 = 353,696.48 : x
  2. Step 2: Convert to fraction form
    690,552.80/1,034,274 = 353,696.48/x
  3. Step 3: Cross multiply
    690,552.80x = 1,034,274 × 353,696.48
  4. Step 4: Simplify right side
    690,552.80x = 365,819,073,155.52
  5. Step 5: Solve for x
    x = 365,819,073,155.52/690,552.80
  6. Step 6: Final answer
    x = 529,748.16

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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.