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Finding the Fourth Proportional to 514,714.80, 772,590.60 and 248,689.20

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Solution

The fourth proportional to 514,714.80, 772,590.60 and 248,689.20 is: 373,284.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,714.80 : 772,590.60 = 248,689.20 : x
  2. Step 2: Convert to fraction form
    514,714.80/772,590.60 = 248,689.20/x
  3. Step 3: Cross multiply
    514,714.80x = 772,590.60 × 248,689.20
  4. Step 4: Simplify right side
    514,714.80x = 192,134,938,241.52
  5. Step 5: Solve for x
    x = 192,134,938,241.52/514,714.80
  6. Step 6: Final answer
    x = 373,284.27

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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.