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Finding the Fourth Proportional to 417,497.59, 626,287.38 and 117,980.47

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Solution

The fourth proportional to 417,497.59, 626,287.38 and 117,980.47 is: 176,982.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,497.59 : 626,287.38 = 117,980.47 : x
  2. Step 2: Convert to fraction form
    417,497.59/626,287.38 = 117,980.47/x
  3. Step 3: Cross multiply
    417,497.59x = 626,287.38 × 117,980.47
  4. Step 4: Simplify right side
    417,497.59x = 73,889,679,447.47
  5. Step 5: Solve for x
    x = 73,889,679,447.47/417,497.59
  6. Step 6: Final answer
    x = 176,982.29

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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.