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Finding the Fourth Proportional to 292,827.40, 439,241.10 and 257,835.40

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Solution

The fourth proportional to 292,827.40, 439,241.10 and 257,835.40 is: 386,753.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,827.40 : 439,241.10 = 257,835.40 : x
  2. Step 2: Convert to fraction form
    292,827.40/439,241.10 = 257,835.40/x
  3. Step 3: Cross multiply
    292,827.40x = 439,241.10 × 257,835.40
  4. Step 4: Simplify right side
    292,827.40x = 113,251,904,714.94
  5. Step 5: Solve for x
    x = 113,251,904,714.94/292,827.40
  6. Step 6: Final answer
    x = 386,753.10

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1.5x scale

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.