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Finding the Fourth Proportional to 617,921.40, 927,659.70 and 333,838.20

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Solution

The fourth proportional to 617,921.40, 927,659.70 and 333,838.20 is: 501,177.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,921.40 : 927,659.70 = 333,838.20 : x
  2. Step 2: Convert to fraction form
    617,921.40/927,659.70 = 333,838.20/x
  3. Step 3: Cross multiply
    617,921.40x = 927,659.70 × 333,838.20
  4. Step 4: Simplify right side
    617,921.40x = 309,688,244,460.54
  5. Step 5: Solve for x
    x = 309,688,244,460.54/617,921.40
  6. Step 6: Final answer
    x = 501,177.41

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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.