Home / 813,210.80-1,122,627.48-541,439.60

Finding the Fourth Proportional to 813,210.80, 1,122,627.48 and 541,439.60

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Solution

The fourth proportional to 813,210.80, 1,122,627.48 and 541,439.60 is: 747,450.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,210.80 : 1,122,627.48 = 541,439.60 : x
  2. Step 2: Convert to fraction form
    813,210.80/1,122,627.48 = 541,439.60/x
  3. Step 3: Cross multiply
    813,210.80x = 1,122,627.48 × 541,439.60
  4. Step 4: Simplify right side
    813,210.80x = 607,834,973,720.21
  5. Step 5: Solve for x
    x = 607,834,973,720.21/813,210.80
  6. Step 6: Final answer
    x = 747,450.69

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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.