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Finding the Fourth Proportional to 346,803.60, 520,205.40 and 222,387.60

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Solution

The fourth proportional to 346,803.60, 520,205.40 and 222,387.60 is: 333,581.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,803.60 : 520,205.40 = 222,387.60 : x
  2. Step 2: Convert to fraction form
    346,803.60/520,205.40 = 222,387.60/x
  3. Step 3: Cross multiply
    346,803.60x = 520,205.40 × 222,387.60
  4. Step 4: Simplify right side
    346,803.60x = 115,687,230,413.04
  5. Step 5: Solve for x
    x = 115,687,230,413.04/346,803.60
  6. Step 6: Final answer
    x = 333,581.40

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1.5x scale

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.