Home / 896,743.20-1,345,114.80-577,878.60

Finding the Fourth Proportional to 896,743.20, 1,345,114.80 and 577,878.60

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Solution

The fourth proportional to 896,743.20, 1,345,114.80 and 577,878.60 is: 866,817.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,743.20 : 1,345,114.80 = 577,878.60 : x
  2. Step 2: Convert to fraction form
    896,743.20/1,345,114.80 = 577,878.60/x
  3. Step 3: Cross multiply
    896,743.20x = 1,345,114.80 × 577,878.60
  4. Step 4: Simplify right side
    896,743.20x = 777,313,057,463.28
  5. Step 5: Solve for x
    x = 777,313,057,463.28/896,743.20
  6. Step 6: Final answer
    x = 866,817.90

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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.