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Finding the Fourth Proportional to 637,186.83, 879,311.05 and 350,700.76

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Solution

The fourth proportional to 637,186.83, 879,311.05 and 350,700.76 is: 483,963.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,186.83 : 879,311.05 = 350,700.76 : x
  2. Step 2: Convert to fraction form
    637,186.83/879,311.05 = 350,700.76/x
  3. Step 3: Cross multiply
    637,186.83x = 879,311.05 × 350,700.76
  4. Step 4: Simplify right side
    637,186.83x = 308,375,053,511.40
  5. Step 5: Solve for x
    x = 308,375,053,511.40/637,186.83
  6. Step 6: Final answer
    x = 483,963.32

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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.