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Finding the Fourth Proportional to 672,867.41, 928,530.95 and 382,517.01

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Solution

The fourth proportional to 672,867.41, 928,530.95 and 382,517.01 is: 527,858.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,867.41 : 928,530.95 = 382,517.01 : x
  2. Step 2: Convert to fraction form
    672,867.41/928,530.95 = 382,517.01/x
  3. Step 3: Cross multiply
    672,867.41x = 928,530.95 × 382,517.01
  4. Step 4: Simplify right side
    672,867.41x = 355,178,880,773.87
  5. Step 5: Solve for x
    x = 355,178,880,773.87/672,867.41
  6. Step 6: Final answer
    x = 527,858.65

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.