Home / 823,377.40-1,235,066.10-350,078.20

Finding the Fourth Proportional to 823,377.40, 1,235,066.10 and 350,078.20

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Solution

The fourth proportional to 823,377.40, 1,235,066.10 and 350,078.20 is: 525,117.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,377.40 : 1,235,066.10 = 350,078.20 : x
  2. Step 2: Convert to fraction form
    823,377.40/1,235,066.10 = 350,078.20/x
  3. Step 3: Cross multiply
    823,377.40x = 1,235,066.10 × 350,078.20
  4. Step 4: Simplify right side
    823,377.40x = 432,369,717,169.02
  5. Step 5: Solve for x
    x = 432,369,717,169.02/823,377.40
  6. Step 6: Final answer
    x = 525,117.30

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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.