Home / 813,256.57-1,122,280.36-450,679.69

Finding the Fourth Proportional to 813,256.57, 1,122,280.36 and 450,679.69

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Solution

The fourth proportional to 813,256.57, 1,122,280.36 and 450,679.69 is: 621,930.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,256.57 : 1,122,280.36 = 450,679.69 : x
  2. Step 2: Convert to fraction form
    813,256.57/1,122,280.36 = 450,679.69/x
  3. Step 3: Cross multiply
    813,256.57x = 1,122,280.36 × 450,679.69
  4. Step 4: Simplify right side
    813,256.57x = 505,788,964,737.89
  5. Step 5: Solve for x
    x = 505,788,964,737.89/813,256.57
  6. Step 6: Final answer
    x = 621,930.38

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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.