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Finding the Fourth Proportional to 617,646.87, 926,736.59 and 238,834.31

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Solution

The fourth proportional to 617,646.87, 926,736.59 and 238,834.31 is: 358,354.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,646.87 : 926,736.59 = 238,834.31 : x
  2. Step 2: Convert to fraction form
    617,646.87/926,736.59 = 238,834.31/x
  3. Step 3: Cross multiply
    617,646.87x = 926,736.59 × 238,834.31
  4. Step 4: Simplify right side
    617,646.87x = 221,336,489,987.81
  5. Step 5: Solve for x
    x = 221,336,489,987.81/617,646.87
  6. Step 6: Final answer
    x = 358,354.43

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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.