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Finding the Fourth Proportional to 423,967.68, 585,063.60 and 232,981.20

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Solution

The fourth proportional to 423,967.68, 585,063.60 and 232,981.20 is: 321,507.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,967.68 : 585,063.60 = 232,981.20 : x
  2. Step 2: Convert to fraction form
    423,967.68/585,063.60 = 232,981.20/x
  3. Step 3: Cross multiply
    423,967.68x = 585,063.60 × 232,981.20
  4. Step 4: Simplify right side
    423,967.68x = 136,308,819,604.32
  5. Step 5: Solve for x
    x = 136,308,819,604.32/423,967.68
  6. Step 6: Final answer
    x = 321,507.57

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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.