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Finding the Fourth Proportional to 411,522.63, 617,460.99 and 158,980.89

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Solution

The fourth proportional to 411,522.63, 617,460.99 and 158,980.89 is: 238,539.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,522.63 : 617,460.99 = 158,980.89 : x
  2. Step 2: Convert to fraction form
    411,522.63/617,460.99 = 158,980.89/x
  3. Step 3: Cross multiply
    411,522.63x = 617,460.99 × 158,980.89
  4. Step 4: Simplify right side
    411,522.63x = 98,164,497,730.48
  5. Step 5: Solve for x
    x = 98,164,497,730.48/411,522.63
  6. Step 6: Final answer
    x = 238,539.73

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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.