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Finding the Fourth Proportional to 634,005.36, 874,922.40 and 347,524.92

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Solution

The fourth proportional to 634,005.36, 874,922.40 and 347,524.92 is: 479,581.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,005.36 : 874,922.40 = 347,524.92 : x
  2. Step 2: Convert to fraction form
    634,005.36/874,922.40 = 347,524.92/x
  3. Step 3: Cross multiply
    634,005.36x = 874,922.40 × 347,524.92
  4. Step 4: Simplify right side
    634,005.36x = 304,057,337,066.21
  5. Step 5: Solve for x
    x = 304,057,337,066.21/634,005.36
  6. Step 6: Final answer
    x = 479,581.65

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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.