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Finding the Fourth Proportional to 659,670.66, 989,503.56 and 238,848.12

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Solution

The fourth proportional to 659,670.66, 989,503.56 and 238,848.12 is: 358,271.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,670.66 : 989,503.56 = 238,848.12 : x
  2. Step 2: Convert to fraction form
    659,670.66/989,503.56 = 238,848.12/x
  3. Step 3: Cross multiply
    659,670.66x = 989,503.56 × 238,848.12
  4. Step 4: Simplify right side
    659,670.66x = 236,341,065,039.31
  5. Step 5: Solve for x
    x = 236,341,065,039.31/659,670.66
  6. Step 6: Final answer
    x = 358,271.30

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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.