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Finding the Fourth Proportional to 670,572.50, 925,521.46 and 384,284.48

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Solution

The fourth proportional to 670,572.50, 925,521.46 and 384,284.48 is: 530,387.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,572.50 : 925,521.46 = 384,284.48 : x
  2. Step 2: Convert to fraction form
    670,572.50/925,521.46 = 384,284.48/x
  3. Step 3: Cross multiply
    670,572.50x = 925,521.46 × 384,284.48
  4. Step 4: Simplify right side
    670,572.50x = 355,663,527,396.62
  5. Step 5: Solve for x
    x = 355,663,527,396.62/670,572.50
  6. Step 6: Final answer
    x = 530,387.89

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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.