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Finding the Fourth Proportional to 388,817.50, 583,226.25 and 93,329.50

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Solution

The fourth proportional to 388,817.50, 583,226.25 and 93,329.50 is: 139,994.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,817.50 : 583,226.25 = 93,329.50 : x
  2. Step 2: Convert to fraction form
    388,817.50/583,226.25 = 93,329.50/x
  3. Step 3: Cross multiply
    388,817.50x = 583,226.25 × 93,329.50
  4. Step 4: Simplify right side
    388,817.50x = 54,432,214,299.38
  5. Step 5: Solve for x
    x = 54,432,214,299.38/388,817.50
  6. Step 6: Final answer
    x = 139,994.25

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Double scale
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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.