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Finding the Fourth Proportional to 384,371.70, 576,557.55 and 384,371.70

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Solution

The fourth proportional to 384,371.70, 576,557.55 and 384,371.70 is: 576,557.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,371.70 : 576,557.55 = 384,371.70 : x
  2. Step 2: Convert to fraction form
    384,371.70/576,557.55 = 384,371.70/x
  3. Step 3: Cross multiply
    384,371.70x = 576,557.55 × 384,371.70
  4. Step 4: Simplify right side
    384,371.70x = 221,612,405,641.34
  5. Step 5: Solve for x
    x = 221,612,405,641.34/384,371.70
  6. Step 6: Final answer
    x = 576,557.55

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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.