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Finding the Fourth Proportional to 1,046,052.45, 1,569,078.68 and 868,905.45

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Solution

The fourth proportional to 1,046,052.45, 1,569,078.68 and 868,905.45 is: 1,303,358.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,046,052.45 : 1,569,078.68 = 868,905.45 : x
  2. Step 2: Convert to fraction form
    1,046,052.45/1,569,078.68 = 868,905.45/x
  3. Step 3: Cross multiply
    1,046,052.45x = 1,569,078.68 × 868,905.45
  4. Step 4: Simplify right side
    1,046,052.45x = 1,363,381,012,186.28
  5. Step 5: Solve for x
    x = 1,363,381,012,186.28/1,046,052.45
  6. Step 6: Final answer
    x = 1,303,358.18

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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.