Home / 817,079.40-1,225,619.10-397,175.40

Finding the Fourth Proportional to 817,079.40, 1,225,619.10 and 397,175.40

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Solution

The fourth proportional to 817,079.40, 1,225,619.10 and 397,175.40 is: 595,763.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,079.40 : 1,225,619.10 = 397,175.40 : x
  2. Step 2: Convert to fraction form
    817,079.40/1,225,619.10 = 397,175.40/x
  3. Step 3: Cross multiply
    817,079.40x = 1,225,619.10 × 397,175.40
  4. Step 4: Simplify right side
    817,079.40x = 486,785,756,290.14
  5. Step 5: Solve for x
    x = 486,785,756,290.14/817,079.40
  6. Step 6: Final answer
    x = 595,763.10

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Half scale
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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.