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Finding the Fourth Proportional to 617,467.80, 926,331.30 and 190,968.60

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Solution

The fourth proportional to 617,467.80, 926,331.30 and 190,968.60 is: 286,492.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,467.80 : 926,331.30 = 190,968.60 : x
  2. Step 2: Convert to fraction form
    617,467.80/926,331.30 = 190,968.60/x
  3. Step 3: Cross multiply
    617,467.80x = 926,331.30 × 190,968.60
  4. Step 4: Simplify right side
    617,467.80x = 176,900,191,497.18
  5. Step 5: Solve for x
    x = 176,900,191,497.18/617,467.80
  6. Step 6: Final answer
    x = 286,492.98

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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.