Home / 838,454.40-1,157,065.49-456,480.27

Finding the Fourth Proportional to 838,454.40, 1,157,065.49 and 456,480.27

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Solution

The fourth proportional to 838,454.40, 1,157,065.49 and 456,480.27 is: 629,941.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,454.40 : 1,157,065.49 = 456,480.27 : x
  2. Step 2: Convert to fraction form
    838,454.40/1,157,065.49 = 456,480.27/x
  3. Step 3: Cross multiply
    838,454.40x = 1,157,065.49 × 456,480.27
  4. Step 4: Simplify right side
    838,454.40x = 528,177,568,424.08
  5. Step 5: Solve for x
    x = 528,177,568,424.08/838,454.40
  6. Step 6: Final answer
    x = 629,941.91

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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.