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Finding the Fourth Proportional to 670,563.30, 925,349.17 and 380,194.39

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Solution

The fourth proportional to 670,563.30, 925,349.17 and 380,194.39 is: 524,652.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,563.30 : 925,349.17 = 380,194.39 : x
  2. Step 2: Convert to fraction form
    670,563.30/925,349.17 = 380,194.39/x
  3. Step 3: Cross multiply
    670,563.30x = 925,349.17 × 380,194.39
  4. Step 4: Simplify right side
    670,563.30x = 351,812,563,225.16
  5. Step 5: Solve for x
    x = 351,812,563,225.16/670,563.30
  6. Step 6: Final answer
    x = 524,652.28

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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.