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Finding the Fourth Proportional to 999,718.60, 1,499,577.90 and 999,718.60

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Solution

The fourth proportional to 999,718.60, 1,499,577.90 and 999,718.60 is: 1,499,577.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,718.60 : 1,499,577.90 = 999,718.60 : x
  2. Step 2: Convert to fraction form
    999,718.60/1,499,577.90 = 999,718.60/x
  3. Step 3: Cross multiply
    999,718.60x = 1,499,577.90 × 999,718.60
  4. Step 4: Simplify right side
    999,718.60x = 1,499,155,918,778.94
  5. Step 5: Solve for x
    x = 1,499,155,918,778.94/999,718.60
  6. Step 6: Final answer
    x = 1,499,577.90

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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.