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Finding the Fourth Proportional to 670,564.42, 925,387.96 and 384,084.22

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Solution

The fourth proportional to 670,564.42, 925,387.96 and 384,084.22 is: 530,041.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,564.42 : 925,387.96 = 384,084.22 : x
  2. Step 2: Convert to fraction form
    670,564.42/925,387.96 = 384,084.22/x
  3. Step 3: Cross multiply
    670,564.42x = 925,387.96 × 384,084.22
  4. Step 4: Simplify right side
    670,564.42x = 355,426,912,813.99
  5. Step 5: Solve for x
    x = 355,426,912,813.99/670,564.42
  6. Step 6: Final answer
    x = 530,041.41

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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.