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Finding the Fourth Proportional to 617,574.40, 926,626.52 and 238,761.20

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Solution

The fourth proportional to 617,574.40, 926,626.52 and 238,761.20 is: 358,244.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,574.40 : 926,626.52 = 238,761.20 : x
  2. Step 2: Convert to fraction form
    617,574.40/926,626.52 = 238,761.20/x
  3. Step 3: Cross multiply
    617,574.40x = 926,626.52 × 238,761.20
  4. Step 4: Simplify right side
    617,574.40x = 221,242,459,867.02
  5. Step 5: Solve for x
    x = 221,242,459,867.02/617,574.40
  6. Step 6: Final answer
    x = 358,244.22

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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.