Home / 638,537.60-957,806.40-514,121.60

Finding the Fourth Proportional to 638,537.60, 957,806.40 and 514,121.60

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Solution

The fourth proportional to 638,537.60, 957,806.40 and 514,121.60 is: 771,182.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,537.60 : 957,806.40 = 514,121.60 : x
  2. Step 2: Convert to fraction form
    638,537.60/957,806.40 = 514,121.60/x
  3. Step 3: Cross multiply
    638,537.60x = 957,806.40 × 514,121.60
  4. Step 4: Simplify right side
    638,537.60x = 492,428,958,858.24
  5. Step 5: Solve for x
    x = 492,428,958,858.24/638,537.60
  6. Step 6: Final answer
    x = 771,182.40

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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.