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Finding the Fourth Proportional to 612,207.19, 918,320.01 and 233,148.88

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Solution

The fourth proportional to 612,207.19, 918,320.01 and 233,148.88 is: 349,726.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,207.19 : 918,320.01 = 233,148.88 : x
  2. Step 2: Convert to fraction form
    612,207.19/918,320.01 = 233,148.88/x
  3. Step 3: Cross multiply
    612,207.19x = 918,320.01 × 233,148.88
  4. Step 4: Simplify right side
    612,207.19x = 214,105,276,055.74
  5. Step 5: Solve for x
    x = 214,105,276,055.74/612,207.19
  6. Step 6: Final answer
    x = 349,726.83

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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.