Home / 873,321.70-1,205,171.60-491,347.57

Finding the Fourth Proportional to 873,321.70, 1,205,171.60 and 491,347.57

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Solution

The fourth proportional to 873,321.70, 1,205,171.60 and 491,347.57 is: 678,052.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,321.70 : 1,205,171.60 = 491,347.57 : x
  2. Step 2: Convert to fraction form
    873,321.70/1,205,171.60 = 491,347.57/x
  3. Step 3: Cross multiply
    873,321.70x = 1,205,171.60 × 491,347.57
  4. Step 4: Simplify right side
    873,321.70x = 592,158,137,093.01
  5. Step 5: Solve for x
    x = 592,158,137,093.01/873,321.70
  6. Step 6: Final answer
    x = 678,052.70

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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.