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Finding the Fourth Proportional to 1,039,746.10, 1,559,619.15 and 887,530.90

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Solution

The fourth proportional to 1,039,746.10, 1,559,619.15 and 887,530.90 is: 1,331,296.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039,746.10 : 1,559,619.15 = 887,530.90 : x
  2. Step 2: Convert to fraction form
    1,039,746.10/1,559,619.15 = 887,530.90/x
  3. Step 3: Cross multiply
    1,039,746.10x = 1,559,619.15 × 887,530.90
  4. Step 4: Simplify right side
    1,039,746.10x = 1,384,210,187,856.73
  5. Step 5: Solve for x
    x = 1,384,210,187,856.73/1,039,746.10
  6. Step 6: Final answer
    x = 1,331,296.35

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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.