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Finding the Fourth Proportional to 714,233.34, 985,656.87 and 391,924.62

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Solution

The fourth proportional to 714,233.34, 985,656.87 and 391,924.62 is: 540,864.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,233.34 : 985,656.87 = 391,924.62 : x
  2. Step 2: Convert to fraction form
    714,233.34/985,656.87 = 391,924.62/x
  3. Step 3: Cross multiply
    714,233.34x = 985,656.87 × 391,924.62
  4. Step 4: Simplify right side
    714,233.34x = 386,303,194,225.14
  5. Step 5: Solve for x
    x = 386,303,194,225.14/714,233.34
  6. Step 6: Final answer
    x = 540,864.13

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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.