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Finding the Fourth Proportional to 346,333.70, 478,049.38 and 203,151.62

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Solution

The fourth proportional to 346,333.70, 478,049.38 and 203,151.62 is: 280,413.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,333.70 : 478,049.38 = 203,151.62 : x
  2. Step 2: Convert to fraction form
    346,333.70/478,049.38 = 203,151.62/x
  3. Step 3: Cross multiply
    346,333.70x = 478,049.38 × 203,151.62
  4. Step 4: Simplify right side
    346,333.70x = 97,116,505,987.00
  5. Step 5: Solve for x
    x = 97,116,505,987.00/346,333.70
  6. Step 6: Final answer
    x = 280,413.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.