Home / 865,346.20-1,298,019.30-492,098.20

Finding the Fourth Proportional to 865,346.20, 1,298,019.30 and 492,098.20

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Solution

The fourth proportional to 865,346.20, 1,298,019.30 and 492,098.20 is: 738,147.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,346.20 : 1,298,019.30 = 492,098.20 : x
  2. Step 2: Convert to fraction form
    865,346.20/1,298,019.30 = 492,098.20/x
  3. Step 3: Cross multiply
    865,346.20x = 1,298,019.30 × 492,098.20
  4. Step 4: Simplify right side
    865,346.20x = 638,752,961,095.26
  5. Step 5: Solve for x
    x = 638,752,961,095.26/865,346.20
  6. Step 6: Final answer
    x = 738,147.30

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Half scale
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Double scale
Find fourth proportional to 865,347.20, 1,298,020.80 and 492,099.20
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.