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Finding the Fourth Proportional to 2,514,719.81, 3,769,805.43 and 916,909.29

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Solution

The fourth proportional to 2,514,719.81, 3,769,805.43 and 916,909.29 is: 1,374,534.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,514,719.81 : 3,769,805.43 = 916,909.29 : x
  2. Step 2: Convert to fraction form
    2,514,719.81/3,769,805.43 = 916,909.29/x
  3. Step 3: Cross multiply
    2,514,719.81x = 3,769,805.43 × 916,909.29
  4. Step 4: Simplify right side
    2,514,719.81x = 3,456,569,620,259.45
  5. Step 5: Solve for x
    x = 3,456,569,620,259.45/2,514,719.81
  6. Step 6: Final answer
    x = 1,374,534.70

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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.