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Finding the Fourth Proportional to 996,751.20, 1,495,645.20 and 435,842.40

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Solution

The fourth proportional to 996,751.20, 1,495,645.20 and 435,842.40 is: 653,990.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,751.20 : 1,495,645.20 = 435,842.40 : x
  2. Step 2: Convert to fraction form
    996,751.20/1,495,645.20 = 435,842.40/x
  3. Step 3: Cross multiply
    996,751.20x = 1,495,645.20 × 435,842.40
  4. Step 4: Simplify right side
    996,751.20x = 651,865,593,516.48
  5. Step 5: Solve for x
    x = 651,865,593,516.48/996,751.20
  6. Step 6: Final answer
    x = 653,990.28

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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.