Home / 805,770.51-1,112,252.54-479,082.74

Finding the Fourth Proportional to 805,770.51, 1,112,252.54 and 479,082.74

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Solution

The fourth proportional to 805,770.51, 1,112,252.54 and 479,082.74 is: 661,306.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,770.51 : 1,112,252.54 = 479,082.74 : x
  2. Step 2: Convert to fraction form
    805,770.51/1,112,252.54 = 479,082.74/x
  3. Step 3: Cross multiply
    805,770.51x = 1,112,252.54 × 479,082.74
  4. Step 4: Simplify right side
    805,770.51x = 532,860,986,478.48
  5. Step 5: Solve for x
    x = 532,860,986,478.48/805,770.51
  6. Step 6: Final answer
    x = 661,306.14

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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.