Home / 938,536.86-1,407,805.27-432,948.25

Finding the Fourth Proportional to 938,536.86, 1,407,805.27 and 432,948.25

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Solution

The fourth proportional to 938,536.86, 1,407,805.27 and 432,948.25 is: 649,422.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,536.86 : 1,407,805.27 = 432,948.25 : x
  2. Step 2: Convert to fraction form
    938,536.86/1,407,805.27 = 432,948.25/x
  3. Step 3: Cross multiply
    938,536.86x = 1,407,805.27 × 432,948.25
  4. Step 4: Simplify right side
    938,536.86x = 609,506,825,822.54
  5. Step 5: Solve for x
    x = 609,506,825,822.54/938,536.86
  6. Step 6: Final answer
    x = 649,422.36

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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.