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Finding the Fourth Proportional to 639,006.30, 958,509.45 and 534,030.30

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Solution

The fourth proportional to 639,006.30, 958,509.45 and 534,030.30 is: 801,045.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,006.30 : 958,509.45 = 534,030.30 : x
  2. Step 2: Convert to fraction form
    639,006.30/958,509.45 = 534,030.30/x
  3. Step 3: Cross multiply
    639,006.30x = 958,509.45 × 534,030.30
  4. Step 4: Simplify right side
    639,006.30x = 511,873,089,136.34
  5. Step 5: Solve for x
    x = 511,873,089,136.34/639,006.30
  6. Step 6: Final answer
    x = 801,045.45

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.