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Finding the Fourth Proportional to 478,870.60, 718,205.10 and 241,990.60

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Solution

The fourth proportional to 478,870.60, 718,205.10 and 241,990.60 is: 362,934.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,870.60 : 718,205.10 = 241,990.60 : x
  2. Step 2: Convert to fraction form
    478,870.60/718,205.10 = 241,990.60/x
  3. Step 3: Cross multiply
    478,870.60x = 718,205.10 × 241,990.60
  4. Step 4: Simplify right side
    478,870.60x = 173,798,883,072.06
  5. Step 5: Solve for x
    x = 173,798,883,072.06/478,870.60
  6. Step 6: Final answer
    x = 362,934.96

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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.