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Finding the Fourth Proportional to 549,792.20, 824,208.30 and 213,062.60

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Solution

The fourth proportional to 549,792.20, 824,208.30 and 213,062.60 is: 319,407.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,792.20 : 824,208.30 = 213,062.60 : x
  2. Step 2: Convert to fraction form
    549,792.20/824,208.30 = 213,062.60/x
  3. Step 3: Cross multiply
    549,792.20x = 824,208.30 × 213,062.60
  4. Step 4: Simplify right side
    549,792.20x = 175,607,963,339.58
  5. Step 5: Solve for x
    x = 175,607,963,339.58/549,792.20
  6. Step 6: Final answer
    x = 319,407.88

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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.