Home / 834,408.80-1,151,506.78-471,886.87

Finding the Fourth Proportional to 834,408.80, 1,151,506.78 and 471,886.87

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Solution

The fourth proportional to 834,408.80, 1,151,506.78 and 471,886.87 is: 651,216.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    834,408.80 : 1,151,506.78 = 471,886.87 : x
  2. Step 2: Convert to fraction form
    834,408.80/1,151,506.78 = 471,886.87/x
  3. Step 3: Cross multiply
    834,408.80x = 1,151,506.78 × 471,886.87
  4. Step 4: Simplify right side
    834,408.80x = 543,380,924,959.78
  5. Step 5: Solve for x
    x = 543,380,924,959.78/834,408.80
  6. Step 6: Final answer
    x = 651,216.68

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Double scale
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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.