Home / 638,302.70-957,454.05-458,941.37

Finding the Fourth Proportional to 638,302.70, 957,454.05 and 458,941.37

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Solution

The fourth proportional to 638,302.70, 957,454.05 and 458,941.37 is: 688,412.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,302.70 : 957,454.05 = 458,941.37 : x
  2. Step 2: Convert to fraction form
    638,302.70/957,454.05 = 458,941.37/x
  3. Step 3: Cross multiply
    638,302.70x = 957,454.05 × 458,941.37
  4. Step 4: Simplify right side
    638,302.70x = 439,415,268,631.78
  5. Step 5: Solve for x
    x = 439,415,268,631.78/638,302.70
  6. Step 6: Final answer
    x = 688,412.05

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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.