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Finding the Fourth Proportional to 768,185.17, 1,059,670.15 and 539,084.36

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Solution

The fourth proportional to 768,185.17, 1,059,670.15 and 539,084.36 is: 743,637.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,185.17 : 1,059,670.15 = 539,084.36 : x
  2. Step 2: Convert to fraction form
    768,185.17/1,059,670.15 = 539,084.36/x
  3. Step 3: Cross multiply
    768,185.17x = 1,059,670.15 × 539,084.36
  4. Step 4: Simplify right side
    768,185.17x = 571,251,605,925.32
  5. Step 5: Solve for x
    x = 571,251,605,925.32/768,185.17
  6. Step 6: Final answer
    x = 743,637.90

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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.