Home / 691,563.60-1,037,345.40-192,927.60

Finding the Fourth Proportional to 691,563.60, 1,037,345.40 and 192,927.60

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Solution

The fourth proportional to 691,563.60, 1,037,345.40 and 192,927.60 is: 289,391.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,563.60 : 1,037,345.40 = 192,927.60 : x
  2. Step 2: Convert to fraction form
    691,563.60/1,037,345.40 = 192,927.60/x
  3. Step 3: Cross multiply
    691,563.60x = 1,037,345.40 × 192,927.60
  4. Step 4: Simplify right side
    691,563.60x = 200,132,558,393.04
  5. Step 5: Solve for x
    x = 200,132,558,393.04/691,563.60
  6. Step 6: Final answer
    x = 289,391.40

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.