Home / 458,865.60-688,298.40-193,145.10

Finding the Fourth Proportional to 458,865.60, 688,298.40 and 193,145.10

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Solution

The fourth proportional to 458,865.60, 688,298.40 and 193,145.10 is: 289,717.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,865.60 : 688,298.40 = 193,145.10 : x
  2. Step 2: Convert to fraction form
    458,865.60/688,298.40 = 193,145.10/x
  3. Step 3: Cross multiply
    458,865.60x = 688,298.40 × 193,145.10
  4. Step 4: Simplify right side
    458,865.60x = 132,941,463,297.84
  5. Step 5: Solve for x
    x = 132,941,463,297.84/458,865.60
  6. Step 6: Final answer
    x = 289,717.65

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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.