Home / 812,896.08-1,121,065.56-526,117.20

Finding the Fourth Proportional to 812,896.08, 1,121,065.56 and 526,117.20

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Solution

The fourth proportional to 812,896.08, 1,121,065.56 and 526,117.20 is: 725,568.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,896.08 : 1,121,065.56 = 526,117.20 : x
  2. Step 2: Convert to fraction form
    812,896.08/1,121,065.56 = 526,117.20/x
  3. Step 3: Cross multiply
    812,896.08x = 1,121,065.56 × 526,117.20
  4. Step 4: Simplify right side
    812,896.08x = 589,811,873,443.63
  5. Step 5: Solve for x
    x = 589,811,873,443.63/812,896.08
  6. Step 6: Final answer
    x = 725,568.60

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.