Home / 921,680.57-1,271,398.23-576,918.05

Finding the Fourth Proportional to 921,680.57, 1,271,398.23 and 576,918.05

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Solution

The fourth proportional to 921,680.57, 1,271,398.23 and 576,918.05 is: 795,820.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,680.57 : 1,271,398.23 = 576,918.05 : x
  2. Step 2: Convert to fraction form
    921,680.57/1,271,398.23 = 576,918.05/x
  3. Step 3: Cross multiply
    921,680.57x = 1,271,398.23 × 576,918.05
  4. Step 4: Simplify right side
    921,680.57x = 733,492,581,268.06
  5. Step 5: Solve for x
    x = 733,492,581,268.06/921,680.57
  6. Step 6: Final answer
    x = 795,820.81

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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.