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Finding the Fourth Proportional to 617,626.40, 926,439.60 and 576,154.40

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Solution

The fourth proportional to 617,626.40, 926,439.60 and 576,154.40 is: 864,231.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,626.40 : 926,439.60 = 576,154.40 : x
  2. Step 2: Convert to fraction form
    617,626.40/926,439.60 = 576,154.40/x
  3. Step 3: Cross multiply
    617,626.40x = 926,439.60 × 576,154.40
  4. Step 4: Simplify right side
    617,626.40x = 533,772,251,874.24
  5. Step 5: Solve for x
    x = 533,772,251,874.24/617,626.40
  6. Step 6: Final answer
    x = 864,231.60

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Half scale
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Double scale
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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.