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Finding the Fourth Proportional to 670,563.02, 925,348.79 and 380,194.11

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Solution

The fourth proportional to 670,563.02, 925,348.79 and 380,194.11 is: 524,651.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,563.02 : 925,348.79 = 380,194.11 : x
  2. Step 2: Convert to fraction form
    670,563.02/925,348.79 = 380,194.11/x
  3. Step 3: Cross multiply
    670,563.02x = 925,348.79 × 380,194.11
  4. Step 4: Simplify right side
    670,563.02x = 351,812,159,653.63
  5. Step 5: Solve for x
    x = 351,812,159,653.63/670,563.02
  6. Step 6: Final answer
    x = 524,651.90

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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.