Home / 638,515.60-957,773.40-514,099.60

Finding the Fourth Proportional to 638,515.60, 957,773.40 and 514,099.60

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Solution

The fourth proportional to 638,515.60, 957,773.40 and 514,099.60 is: 771,149.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,515.60 : 957,773.40 = 514,099.60 : x
  2. Step 2: Convert to fraction form
    638,515.60/957,773.40 = 514,099.60/x
  3. Step 3: Cross multiply
    638,515.60x = 957,773.40 × 514,099.60
  4. Step 4: Simplify right side
    638,515.60x = 492,390,921,830.64
  5. Step 5: Solve for x
    x = 492,390,921,830.64/638,515.60
  6. Step 6: Final answer
    x = 771,149.40

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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.