Home / 838,452.80-1,157,026.74-456,478.76

Finding the Fourth Proportional to 838,452.80, 1,157,026.74 and 456,478.76

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Solution

The fourth proportional to 838,452.80, 1,157,026.74 and 456,478.76 is: 629,919.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,452.80 : 1,157,026.74 = 456,478.76 : x
  2. Step 2: Convert to fraction form
    838,452.80/1,157,026.74 = 456,478.76/x
  3. Step 3: Cross multiply
    838,452.80x = 1,157,026.74 × 456,478.76
  4. Step 4: Simplify right side
    838,452.80x = 528,158,131,562.04
  5. Step 5: Solve for x
    x = 528,158,131,562.04/838,452.80
  6. Step 6: Final answer
    x = 629,919.93

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Double scale
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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.