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Finding the Fourth Proportional to 586,492.20, 879,738.30 and 376,540.20

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Solution

The fourth proportional to 586,492.20, 879,738.30 and 376,540.20 is: 564,810.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,492.20 : 879,738.30 = 376,540.20 : x
  2. Step 2: Convert to fraction form
    586,492.20/879,738.30 = 376,540.20/x
  3. Step 3: Cross multiply
    586,492.20x = 879,738.30 × 376,540.20
  4. Step 4: Simplify right side
    586,492.20x = 331,256,835,429.66
  5. Step 5: Solve for x
    x = 331,256,835,429.66/586,492.20
  6. Step 6: Final answer
    x = 564,810.30

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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.