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Finding the Fourth Proportional to 637,941.65, 880,360.31 and 347,551.79

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Solution

The fourth proportional to 637,941.65, 880,360.31 and 347,551.79 is: 479,621.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,941.65 : 880,360.31 = 347,551.79 : x
  2. Step 2: Convert to fraction form
    637,941.65/880,360.31 = 347,551.79/x
  3. Step 3: Cross multiply
    637,941.65x = 880,360.31 × 347,551.79
  4. Step 4: Simplify right side
    637,941.65x = 305,970,799,847.70
  5. Step 5: Solve for x
    x = 305,970,799,847.70/637,941.65
  6. Step 6: Final answer
    x = 479,621.92

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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.