Home / 749,821.46-1,034,779.66-410,321.30

Finding the Fourth Proportional to 749,821.46, 1,034,779.66 and 410,321.30

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Solution

The fourth proportional to 749,821.46, 1,034,779.66 and 410,321.30 is: 566,257.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,821.46 : 1,034,779.66 = 410,321.30 : x
  2. Step 2: Convert to fraction form
    749,821.46/1,034,779.66 = 410,321.30/x
  3. Step 3: Cross multiply
    749,821.46x = 1,034,779.66 × 410,321.30
  4. Step 4: Simplify right side
    749,821.46x = 424,592,129,105.06
  5. Step 5: Solve for x
    x = 424,592,129,105.06/749,821.46
  6. Step 6: Final answer
    x = 566,257.64

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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.