Home / 411,771.20-614,916.56-407,317.92

Finding the Fourth Proportional to 411,771.20, 614,916.56 and 407,317.92

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Solution

The fourth proportional to 411,771.20, 614,916.56 and 407,317.92 is: 608,266.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,771.20 : 614,916.56 = 407,317.92 : x
  2. Step 2: Convert to fraction form
    411,771.20/614,916.56 = 407,317.92/x
  3. Step 3: Cross multiply
    411,771.20x = 614,916.56 × 407,317.92
  4. Step 4: Simplify right side
    411,771.20x = 250,466,532,905.11
  5. Step 5: Solve for x
    x = 250,466,532,905.11/411,771.20
  6. Step 6: Final answer
    x = 608,266.28

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.