Home / 805,771.51-1,112,253.92-479,083.74

Finding the Fourth Proportional to 805,771.51, 1,112,253.92 and 479,083.74

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Solution

The fourth proportional to 805,771.51, 1,112,253.92 and 479,083.74 is: 661,307.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,771.51 : 1,112,253.92 = 479,083.74 : x
  2. Step 2: Convert to fraction form
    805,771.51/1,112,253.92 = 479,083.74/x
  3. Step 3: Cross multiply
    805,771.51x = 1,112,253.92 × 479,083.74
  4. Step 4: Simplify right side
    805,771.51x = 532,862,767,823.26
  5. Step 5: Solve for x
    x = 532,862,767,823.26/805,771.51
  6. Step 6: Final answer
    x = 661,307.53

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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.