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Finding the Fourth Proportional to 617,511.40, 926,267.10 and 576,039.40

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Solution

The fourth proportional to 617,511.40, 926,267.10 and 576,039.40 is: 864,059.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,511.40 : 926,267.10 = 576,039.40 : x
  2. Step 2: Convert to fraction form
    617,511.40/926,267.10 = 576,039.40/x
  3. Step 3: Cross multiply
    617,511.40x = 926,267.10 × 576,039.40
  4. Step 4: Simplify right side
    617,511.40x = 533,566,344,523.74
  5. Step 5: Solve for x
    x = 533,566,344,523.74/617,511.40
  6. Step 6: Final answer
    x = 864,059.10

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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.