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Finding the Fourth Proportional to 1,353,645.48, 1,867,931.82 and 741,701.10

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Solution

The fourth proportional to 1,353,645.48, 1,867,931.82 and 741,701.10 is: 1,023,493.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353,645.48 : 1,867,931.82 = 741,701.10 : x
  2. Step 2: Convert to fraction form
    1,353,645.48/1,867,931.82 = 741,701.10/x
  3. Step 3: Cross multiply
    1,353,645.48x = 1,867,931.82 × 741,701.10
  4. Step 4: Simplify right side
    1,353,645.48x = 1,385,447,085,619.00
  5. Step 5: Solve for x
    x = 1,385,447,085,619.00/1,353,645.48
  6. Step 6: Final answer
    x = 1,023,493.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.