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Finding the Fourth Proportional to 417,602.28, 626,199.30 and 291,303.03

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Solution

The fourth proportional to 417,602.28, 626,199.30 and 291,303.03 is: 436,812.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,602.28 : 626,199.30 = 291,303.03 : x
  2. Step 2: Convert to fraction form
    417,602.28/626,199.30 = 291,303.03/x
  3. Step 3: Cross multiply
    417,602.28x = 626,199.30 × 291,303.03
  4. Step 4: Simplify right side
    417,602.28x = 182,413,753,473.88
  5. Step 5: Solve for x
    x = 182,413,753,473.88/417,602.28
  6. Step 6: Final answer
    x = 436,812.16

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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.