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Finding the Fourth Proportional to 388,815.63, 583,223.45 and 93,327.63

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Solution

The fourth proportional to 388,815.63, 583,223.45 and 93,327.63 is: 139,991.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,815.63 : 583,223.45 = 93,327.63 : x
  2. Step 2: Convert to fraction form
    388,815.63/583,223.45 = 93,327.63/x
  3. Step 3: Cross multiply
    388,815.63x = 583,223.45 × 93,327.63
  4. Step 4: Simplify right side
    388,815.63x = 54,430,862,348.92
  5. Step 5: Solve for x
    x = 54,430,862,348.92/388,815.63
  6. Step 6: Final answer
    x = 139,991.45

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Similar ratio
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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.