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Finding the Fourth Proportional to 633,979.98, 874,913.85 and 347,500.08

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Solution

The fourth proportional to 633,979.98, 874,913.85 and 347,500.08 is: 479,561.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,979.98 : 874,913.85 = 347,500.08 : x
  2. Step 2: Convert to fraction form
    633,979.98/874,913.85 = 347,500.08/x
  3. Step 3: Cross multiply
    633,979.98x = 874,913.85 × 347,500.08
  4. Step 4: Simplify right side
    633,979.98x = 304,032,632,868.11
  5. Step 5: Solve for x
    x = 304,032,632,868.11/633,979.98
  6. Step 6: Final answer
    x = 479,561.88

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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.