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Finding the Fourth Proportional to 637,296.89, 879,469.58 and 350,816.90

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Solution

The fourth proportional to 637,296.89, 879,469.58 and 350,816.90 is: 484,127.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,296.89 : 879,469.58 = 350,816.90 : x
  2. Step 2: Convert to fraction form
    637,296.89/879,469.58 = 350,816.90/x
  3. Step 3: Cross multiply
    637,296.89x = 879,469.58 × 350,816.90
  4. Step 4: Simplify right side
    637,296.89x = 308,532,788,179.60
  5. Step 5: Solve for x
    x = 308,532,788,179.60/637,296.89
  6. Step 6: Final answer
    x = 484,127.25

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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.