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Finding the Fourth Proportional to 591,031.60, 885,971.40 and 338,052.40

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Solution

The fourth proportional to 591,031.60, 885,971.40 and 338,052.40 is: 506,749.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,031.60 : 885,971.40 = 338,052.40 : x
  2. Step 2: Convert to fraction form
    591,031.60/885,971.40 = 338,052.40/x
  3. Step 3: Cross multiply
    591,031.60x = 885,971.40 × 338,052.40
  4. Step 4: Simplify right side
    591,031.60x = 299,504,758,101.36
  5. Step 5: Solve for x
    x = 299,504,758,101.36/591,031.60
  6. Step 6: Final answer
    x = 506,749.15

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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.