Home / 914,806.80-1,372,080.60-283,784.40

Finding the Fourth Proportional to 914,806.80, 1,372,080.60 and 283,784.40

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Solution

The fourth proportional to 914,806.80, 1,372,080.60 and 283,784.40 is: 425,636.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,806.80 : 1,372,080.60 = 283,784.40 : x
  2. Step 2: Convert to fraction form
    914,806.80/1,372,080.60 = 283,784.40/x
  3. Step 3: Cross multiply
    914,806.80x = 1,372,080.60 × 283,784.40
  4. Step 4: Simplify right side
    914,806.80x = 389,375,069,822.64
  5. Step 5: Solve for x
    x = 389,375,069,822.64/914,806.80
  6. Step 6: Final answer
    x = 425,636.40

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.