Home / 926,910.19-1,389,857.31-287,036.29

Finding the Fourth Proportional to 926,910.19, 1,389,857.31 and 287,036.29

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Solution

The fourth proportional to 926,910.19, 1,389,857.31 and 287,036.29 is: 430,397.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,910.19 : 1,389,857.31 = 287,036.29 : x
  2. Step 2: Convert to fraction form
    926,910.19/1,389,857.31 = 287,036.29/x
  3. Step 3: Cross multiply
    926,910.19x = 1,389,857.31 × 287,036.29
  4. Step 4: Simplify right side
    926,910.19x = 398,939,479,003.87
  5. Step 5: Solve for x
    x = 398,939,479,003.87/926,910.19
  6. Step 6: Final answer
    x = 430,397.12

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Double scale
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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.