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Finding the Fourth Proportional to 368,508.34, 552,412.59 and 144,012.79

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Solution

The fourth proportional to 368,508.34, 552,412.59 and 144,012.79 is: 215,882.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,508.34 : 552,412.59 = 144,012.79 : x
  2. Step 2: Convert to fraction form
    368,508.34/552,412.59 = 144,012.79/x
  3. Step 3: Cross multiply
    368,508.34x = 552,412.59 × 144,012.79
  4. Step 4: Simplify right side
    368,508.34x = 79,554,478,317.03
  5. Step 5: Solve for x
    x = 79,554,478,317.03/368,508.34
  6. Step 6: Final answer
    x = 215,882.44

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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.