Home / 634,147.80-874,660.32-404,862.72

Finding the Fourth Proportional to 634,147.80, 874,660.32 and 404,862.72

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Solution

The fourth proportional to 634,147.80, 874,660.32 and 404,862.72 is: 558,414.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,147.80 : 874,660.32 = 404,862.72 : x
  2. Step 2: Convert to fraction form
    634,147.80/874,660.32 = 404,862.72/x
  3. Step 3: Cross multiply
    634,147.80x = 874,660.32 × 404,862.72
  4. Step 4: Simplify right side
    634,147.80x = 354,117,356,231.27
  5. Step 5: Solve for x
    x = 354,117,356,231.27/634,147.80
  6. Step 6: Final answer
    x = 558,414.55

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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.