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Finding the Fourth Proportional to 1,299,744.01, 1,948,865.58 and 400,944.42

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Solution

The fourth proportional to 1,299,744.01, 1,948,865.58 and 400,944.42 is: 601,185.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,744.01 : 1,948,865.58 = 400,944.42 : x
  2. Step 2: Convert to fraction form
    1,299,744.01/1,948,865.58 = 400,944.42/x
  3. Step 3: Cross multiply
    1,299,744.01x = 1,948,865.58 × 400,944.42
  4. Step 4: Simplify right side
    1,299,744.01x = 781,386,779,631.06
  5. Step 5: Solve for x
    x = 781,386,779,631.06/1,299,744.01
  6. Step 6: Final answer
    x = 601,185.14

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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.