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Finding the Fourth Proportional to 932,419.20, 1,396,555.20 and 808,003.20

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Solution

The fourth proportional to 932,419.20, 1,396,555.20 and 808,003.20 is: 1,210,207.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    932,419.20 : 1,396,555.20 = 808,003.20 : x
  2. Step 2: Convert to fraction form
    932,419.20/1,396,555.20 = 808,003.20/x
  3. Step 3: Cross multiply
    932,419.20x = 1,396,555.20 × 808,003.20
  4. Step 4: Simplify right side
    932,419.20x = 1,128,421,070,576.64
  5. Step 5: Solve for x
    x = 1,128,421,070,576.64/932,419.20
  6. Step 6: Final answer
    x = 1,210,207.89

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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.