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Finding the Fourth Proportional to 895,281.80, 1,344,477.90 and 867,288.20

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Solution

The fourth proportional to 895,281.80, 1,344,477.90 and 867,288.20 is: 1,302,438.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    895,281.80 : 1,344,477.90 = 867,288.20 : x
  2. Step 2: Convert to fraction form
    895,281.80/1,344,477.90 = 867,288.20/x
  3. Step 3: Cross multiply
    895,281.80x = 1,344,477.90 × 867,288.20
  4. Step 4: Simplify right side
    895,281.80x = 1,166,049,817,830.78
  5. Step 5: Solve for x
    x = 1,166,049,817,830.78/895,281.80
  6. Step 6: Final answer
    x = 1,302,438.87

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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.