Home / 742,115.01-1,024,120.68-402,583.26

Finding the Fourth Proportional to 742,115.01, 1,024,120.68 and 402,583.26

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Solution

The fourth proportional to 742,115.01, 1,024,120.68 and 402,583.26 is: 555,565.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,115.01 : 1,024,120.68 = 402,583.26 : x
  2. Step 2: Convert to fraction form
    742,115.01/1,024,120.68 = 402,583.26/x
  3. Step 3: Cross multiply
    742,115.01x = 1,024,120.68 × 402,583.26
  4. Step 4: Simplify right side
    742,115.01x = 412,293,841,987.82
  5. Step 5: Solve for x
    x = 412,293,841,987.82/742,115.01
  6. Step 6: Final answer
    x = 555,565.97

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Double scale
Find fourth proportional to 742,116.01, 1,024,122.06 and 402,584.26
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.