Home / 827,186.40-1,240,779.60-472,236.30

Finding the Fourth Proportional to 827,186.40, 1,240,779.60 and 472,236.30

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Solution

The fourth proportional to 827,186.40, 1,240,779.60 and 472,236.30 is: 708,354.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,186.40 : 1,240,779.60 = 472,236.30 : x
  2. Step 2: Convert to fraction form
    827,186.40/1,240,779.60 = 472,236.30/x
  3. Step 3: Cross multiply
    827,186.40x = 1,240,779.60 × 472,236.30
  4. Step 4: Simplify right side
    827,186.40x = 585,941,167,419.48
  5. Step 5: Solve for x
    x = 585,941,167,419.48/827,186.40
  6. Step 6: Final answer
    x = 708,354.45

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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.