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Finding the Fourth Proportional to 478,653.42, 718,065.51 and 158,824.50

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Solution

The fourth proportional to 478,653.42, 718,065.51 and 158,824.50 is: 238,265.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,653.42 : 718,065.51 = 158,824.50 : x
  2. Step 2: Convert to fraction form
    478,653.42/718,065.51 = 158,824.50/x
  3. Step 3: Cross multiply
    478,653.42x = 718,065.51 × 158,824.50
  4. Step 4: Simplify right side
    478,653.42x = 114,046,395,593.00
  5. Step 5: Solve for x
    x = 114,046,395,593.00/478,653.42
  6. Step 6: Final answer
    x = 238,265.08

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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.