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Finding the Fourth Proportional to 617,440.71, 925,628.80 and 238,627.20

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Solution

The fourth proportional to 617,440.71, 925,628.80 and 238,627.20 is: 357,735.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,440.71 : 925,628.80 = 238,627.20 : x
  2. Step 2: Convert to fraction form
    617,440.71/925,628.80 = 238,627.20/x
  3. Step 3: Cross multiply
    617,440.71x = 925,628.80 × 238,627.20
  4. Step 4: Simplify right side
    617,440.71x = 220,880,208,783.36
  5. Step 5: Solve for x
    x = 220,880,208,783.36/617,440.71
  6. Step 6: Final answer
    x = 357,735.09

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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.