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Finding the Fourth Proportional to 366,548.20, 549,822.30 and 315,809.80

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Solution

The fourth proportional to 366,548.20, 549,822.30 and 315,809.80 is: 473,714.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,548.20 : 549,822.30 = 315,809.80 : x
  2. Step 2: Convert to fraction form
    366,548.20/549,822.30 = 315,809.80/x
  3. Step 3: Cross multiply
    366,548.20x = 549,822.30 × 315,809.80
  4. Step 4: Simplify right side
    366,548.20x = 173,639,270,598.54
  5. Step 5: Solve for x
    x = 173,639,270,598.54/366,548.20
  6. Step 6: Final answer
    x = 473,714.70

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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.