Home / 921,019.41-1,270,974.65-513,100.17

Finding the Fourth Proportional to 921,019.41, 1,270,974.65 and 513,100.17

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Solution

The fourth proportional to 921,019.41, 1,270,974.65 and 513,100.17 is: 708,060.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,019.41 : 1,270,974.65 = 513,100.17 : x
  2. Step 2: Convert to fraction form
    921,019.41/1,270,974.65 = 513,100.17/x
  3. Step 3: Cross multiply
    921,019.41x = 1,270,974.65 × 513,100.17
  4. Step 4: Simplify right side
    921,019.41x = 652,137,306,415.19
  5. Step 5: Solve for x
    x = 652,137,306,415.19/921,019.41
  6. Step 6: Final answer
    x = 708,060.33

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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.