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Finding the Fourth Proportional to 863,595.60, 1,207,459.20 and 863,595.60

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Solution

The fourth proportional to 863,595.60, 1,207,459.20 and 863,595.60 is: 1,207,459.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,595.60 : 1,207,459.20 = 863,595.60 : x
  2. Step 2: Convert to fraction form
    863,595.60/1,207,459.20 = 863,595.60/x
  3. Step 3: Cross multiply
    863,595.60x = 1,207,459.20 × 863,595.60
  4. Step 4: Simplify right side
    863,595.60x = 1,042,756,452,299.52
  5. Step 5: Solve for x
    x = 1,042,756,452,299.52/863,595.60
  6. Step 6: Final answer
    x = 1,207,459.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.