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Finding the Fourth Proportional to 488,659.20, 732,643.20 and 222,547.20

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Solution

The fourth proportional to 488,659.20, 732,643.20 and 222,547.20 is: 333,663.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,659.20 : 732,643.20 = 222,547.20 : x
  2. Step 2: Convert to fraction form
    488,659.20/732,643.20 = 222,547.20/x
  3. Step 3: Cross multiply
    488,659.20x = 732,643.20 × 222,547.20
  4. Step 4: Simplify right side
    488,659.20x = 163,047,692,759.04
  5. Step 5: Solve for x
    x = 163,047,692,759.04/488,659.20
  6. Step 6: Final answer
    x = 333,663.41

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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.