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Finding the Fourth Proportional to 768,349.76, 1,060,324.02 and 424,186.25

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Solution

The fourth proportional to 768,349.76, 1,060,324.02 and 424,186.25 is: 585,377.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,349.76 : 1,060,324.02 = 424,186.25 : x
  2. Step 2: Convert to fraction form
    768,349.76/1,060,324.02 = 424,186.25/x
  3. Step 3: Cross multiply
    768,349.76x = 1,060,324.02 × 424,186.25
  4. Step 4: Simplify right side
    768,349.76x = 449,774,862,406.17
  5. Step 5: Solve for x
    x = 449,774,862,406.17/768,349.76
  6. Step 6: Final answer
    x = 585,377.76

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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.