Home / 936,385.40-1,404,578.10-511,232.60

Finding the Fourth Proportional to 936,385.40, 1,404,578.10 and 511,232.60

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Solution

The fourth proportional to 936,385.40, 1,404,578.10 and 511,232.60 is: 766,848.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,385.40 : 1,404,578.10 = 511,232.60 : x
  2. Step 2: Convert to fraction form
    936,385.40/1,404,578.10 = 511,232.60/x
  3. Step 3: Cross multiply
    936,385.40x = 1,404,578.10 × 511,232.60
  4. Step 4: Simplify right side
    936,385.40x = 718,066,113,966.06
  5. Step 5: Solve for x
    x = 718,066,113,966.06/936,385.40
  6. Step 6: Final answer
    x = 766,848.90

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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.