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Finding the Fourth Proportional to 403,590.63, 556,958.79 and 222,303.18

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Solution

The fourth proportional to 403,590.63, 556,958.79 and 222,303.18 is: 306,780.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,590.63 : 556,958.79 = 222,303.18 : x
  2. Step 2: Convert to fraction form
    403,590.63/556,958.79 = 222,303.18/x
  3. Step 3: Cross multiply
    403,590.63x = 556,958.79 × 222,303.18
  4. Step 4: Simplify right side
    403,590.63x = 123,813,710,145.95
  5. Step 5: Solve for x
    x = 123,813,710,145.95/403,590.63
  6. Step 6: Final answer
    x = 306,780.44

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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.