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Finding the Fourth Proportional to 617,616.30, 926,424.45 and 262,641.90

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Solution

The fourth proportional to 617,616.30, 926,424.45 and 262,641.90 is: 393,962.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,616.30 : 926,424.45 = 262,641.90 : x
  2. Step 2: Convert to fraction form
    617,616.30/926,424.45 = 262,641.90/x
  3. Step 3: Cross multiply
    617,616.30x = 926,424.45 × 262,641.90
  4. Step 4: Simplify right side
    617,616.30x = 243,317,877,754.46
  5. Step 5: Solve for x
    x = 243,317,877,754.46/617,616.30
  6. Step 6: Final answer
    x = 393,962.85

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Similar ratio
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1.5x scale

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.