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Finding the Fourth Proportional to 996,483.20, 1,391,927.20 and 996,483.20

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Solution

The fourth proportional to 996,483.20, 1,391,927.20 and 996,483.20 is: 1,391,927.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,483.20 : 1,391,927.20 = 996,483.20 : x
  2. Step 2: Convert to fraction form
    996,483.20/1,391,927.20 = 996,483.20/x
  3. Step 3: Cross multiply
    996,483.20x = 1,391,927.20 × 996,483.20
  4. Step 4: Simplify right side
    996,483.20x = 1,387,032,070,423.04
  5. Step 5: Solve for x
    x = 1,387,032,070,423.04/996,483.20
  6. Step 6: Final answer
    x = 1,391,927.20

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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.