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Finding the Fourth Proportional to 935,815.10, 1,403,722.65 and 935,815.10

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Solution

The fourth proportional to 935,815.10, 1,403,722.65 and 935,815.10 is: 1,403,722.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,815.10 : 1,403,722.65 = 935,815.10 : x
  2. Step 2: Convert to fraction form
    935,815.10/1,403,722.65 = 935,815.10/x
  3. Step 3: Cross multiply
    935,815.10x = 1,403,722.65 × 935,815.10
  4. Step 4: Simplify right side
    935,815.10x = 1,313,624,852,082.01
  5. Step 5: Solve for x
    x = 1,313,624,852,082.01/935,815.10
  6. Step 6: Final answer
    x = 1,403,722.65

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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.