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Finding the Fourth Proportional to 865,080, 1,193,810.40 and 477,893.52

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Solution

The fourth proportional to 865,080, 1,193,810.40 and 477,893.52 is: 659,493.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,080 : 1,193,810.40 = 477,893.52 : x
  2. Step 2: Convert to fraction form
    865,080/1,193,810.40 = 477,893.52/x
  3. Step 3: Cross multiply
    865,080x = 1,193,810.40 × 477,893.52
  4. Step 4: Simplify right side
    865,080x = 570,514,254,268.61
  5. Step 5: Solve for x
    x = 570,514,254,268.61/865,080
  6. Step 6: Final answer
    x = 659,493.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.