Home / 501,142.16-691,582.92-274,787.12

Finding the Fourth Proportional to 501,142.16, 691,582.92 and 274,787.12

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Solution

The fourth proportional to 501,142.16, 691,582.92 and 274,787.12 is: 379,209.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,142.16 : 691,582.92 = 274,787.12 : x
  2. Step 2: Convert to fraction form
    501,142.16/691,582.92 = 274,787.12/x
  3. Step 3: Cross multiply
    501,142.16x = 691,582.92 × 274,787.12
  4. Step 4: Simplify right side
    501,142.16x = 190,038,078,827.99
  5. Step 5: Solve for x
    x = 190,038,078,827.99/501,142.16
  6. Step 6: Final answer
    x = 379,209.92

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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.