Home / 805,189.79-1,111,175.72-442,628.93

Finding the Fourth Proportional to 805,189.79, 1,111,175.72 and 442,628.93

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Solution

The fourth proportional to 805,189.79, 1,111,175.72 and 442,628.93 is: 610,835.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,189.79 : 1,111,175.72 = 442,628.93 : x
  2. Step 2: Convert to fraction form
    805,189.79/1,111,175.72 = 442,628.93/x
  3. Step 3: Cross multiply
    805,189.79x = 1,111,175.72 × 442,628.93
  4. Step 4: Simplify right side
    805,189.79x = 491,838,519,985.58
  5. Step 5: Solve for x
    x = 491,838,519,985.58/805,189.79
  6. Step 6: Final answer
    x = 610,835.51

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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.