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Finding the Fourth Proportional to 624,427.62, 936,681.78 and 219,570.18

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Solution

The fourth proportional to 624,427.62, 936,681.78 and 219,570.18 is: 329,369.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,427.62 : 936,681.78 = 219,570.18 : x
  2. Step 2: Convert to fraction form
    624,427.62/936,681.78 = 219,570.18/x
  3. Step 3: Cross multiply
    624,427.62x = 936,681.78 × 219,570.18
  4. Step 4: Simplify right side
    624,427.62x = 205,667,387,037.32
  5. Step 5: Solve for x
    x = 205,667,387,037.32/624,427.62
  6. Step 6: Final answer
    x = 329,369.46

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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.