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Finding the Fourth Proportional to 613,094.40, 919,422.90 and 253,114.20

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Solution

The fourth proportional to 613,094.40, 919,422.90 and 253,114.20 is: 379,581.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,094.40 : 919,422.90 = 253,114.20 : x
  2. Step 2: Convert to fraction form
    613,094.40/919,422.90 = 253,114.20/x
  3. Step 3: Cross multiply
    613,094.40x = 919,422.90 × 253,114.20
  4. Step 4: Simplify right side
    613,094.40x = 232,718,991,795.18
  5. Step 5: Solve for x
    x = 232,718,991,795.18/613,094.40
  6. Step 6: Final answer
    x = 379,581.01

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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.