Home / 771,227.80-1,156,841.70-397,979.80

Finding the Fourth Proportional to 771,227.80, 1,156,841.70 and 397,979.80

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Solution

The fourth proportional to 771,227.80, 1,156,841.70 and 397,979.80 is: 596,969.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,227.80 : 1,156,841.70 = 397,979.80 : x
  2. Step 2: Convert to fraction form
    771,227.80/1,156,841.70 = 397,979.80/x
  3. Step 3: Cross multiply
    771,227.80x = 1,156,841.70 × 397,979.80
  4. Step 4: Simplify right side
    771,227.80x = 460,399,628,397.66
  5. Step 5: Solve for x
    x = 460,399,628,397.66/771,227.80
  6. Step 6: Final answer
    x = 596,969.70

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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.