Home / 832,145.10-1,148,357.70-450,171.78

Finding the Fourth Proportional to 832,145.10, 1,148,357.70 and 450,171.78

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Solution

The fourth proportional to 832,145.10, 1,148,357.70 and 450,171.78 is: 621,235.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    832,145.10 : 1,148,357.70 = 450,171.78 : x
  2. Step 2: Convert to fraction form
    832,145.10/1,148,357.70 = 450,171.78/x
  3. Step 3: Cross multiply
    832,145.10x = 1,148,357.70 × 450,171.78
  4. Step 4: Simplify right side
    832,145.10x = 516,958,229,885.71
  5. Step 5: Solve for x
    x = 516,958,229,885.71/832,145.10
  6. Step 6: Final answer
    x = 621,235.68

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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.