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Finding the Fourth Proportional to 517,156.52, 713,680.26 and 290,800.04

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Solution

The fourth proportional to 517,156.52, 713,680.26 and 290,800.04 is: 401,306.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,156.52 : 713,680.26 = 290,800.04 : x
  2. Step 2: Convert to fraction form
    517,156.52/713,680.26 = 290,800.04/x
  3. Step 3: Cross multiply
    517,156.52x = 713,680.26 × 290,800.04
  4. Step 4: Simplify right side
    517,156.52x = 207,538,248,155.21
  5. Step 5: Solve for x
    x = 207,538,248,155.21/517,156.52
  6. Step 6: Final answer
    x = 401,306.45

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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.