Home / 938,538.06-1,296,251.73-636,207.18

Finding the Fourth Proportional to 938,538.06, 1,296,251.73 and 636,207.18

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Solution

The fourth proportional to 938,538.06, 1,296,251.73 and 636,207.18 is: 878,690.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,538.06 : 1,296,251.73 = 636,207.18 : x
  2. Step 2: Convert to fraction form
    938,538.06/1,296,251.73 = 636,207.18/x
  3. Step 3: Cross multiply
    938,538.06x = 1,296,251.73 × 636,207.18
  4. Step 4: Simplify right side
    938,538.06x = 824,684,657,713.42
  5. Step 5: Solve for x
    x = 824,684,657,713.42/938,538.06
  6. Step 6: Final answer
    x = 878,690.69

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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.