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Finding the Fourth Proportional to 484,335.14, 726,530.04 and 147,386.78

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Solution

The fourth proportional to 484,335.14, 726,530.04 and 147,386.78 is: 221,088.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,335.14 : 726,530.04 = 147,386.78 : x
  2. Step 2: Convert to fraction form
    484,335.14/726,530.04 = 147,386.78/x
  3. Step 3: Cross multiply
    484,335.14x = 726,530.04 × 147,386.78
  4. Step 4: Simplify right side
    484,335.14x = 107,080,919,536.22
  5. Step 5: Solve for x
    x = 107,080,919,536.22/484,335.14
  6. Step 6: Final answer
    x = 221,088.48

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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.