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Finding the Fourth Proportional to 993,965.70, 1,490,948.55 and 836,501.70

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Solution

The fourth proportional to 993,965.70, 1,490,948.55 and 836,501.70 is: 1,254,752.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,965.70 : 1,490,948.55 = 836,501.70 : x
  2. Step 2: Convert to fraction form
    993,965.70/1,490,948.55 = 836,501.70/x
  3. Step 3: Cross multiply
    993,965.70x = 1,490,948.55 × 836,501.70
  4. Step 4: Simplify right side
    993,965.70x = 1,247,180,996,687.53
  5. Step 5: Solve for x
    x = 1,247,180,996,687.53/993,965.70
  6. Step 6: Final answer
    x = 1,254,752.55

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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.