Home / 805,066.68-1,111,017.43-442,518.58

Finding the Fourth Proportional to 805,066.68, 1,111,017.43 and 442,518.58

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Solution

The fourth proportional to 805,066.68, 1,111,017.43 and 442,518.58 is: 610,689.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,066.68 : 1,111,017.43 = 442,518.58 : x
  2. Step 2: Convert to fraction form
    805,066.68/1,111,017.43 = 442,518.58/x
  3. Step 3: Cross multiply
    805,066.68x = 1,111,017.43 × 442,518.58
  4. Step 4: Simplify right side
    805,066.68x = 491,645,855,478.85
  5. Step 5: Solve for x
    x = 491,645,855,478.85/805,066.68
  6. Step 6: Final answer
    x = 610,689.61

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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.