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Finding the Fourth Proportional to 613,141.94, 919,094.65 and 385,600.17

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Solution

The fourth proportional to 613,141.94, 919,094.65 and 385,600.17 is: 578,011.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,141.94 : 919,094.65 = 385,600.17 : x
  2. Step 2: Convert to fraction form
    613,141.94/919,094.65 = 385,600.17/x
  3. Step 3: Cross multiply
    613,141.94x = 919,094.65 × 385,600.17
  4. Step 4: Simplify right side
    613,141.94x = 354,403,051,358.09
  5. Step 5: Solve for x
    x = 354,403,051,358.09/613,141.94
  6. Step 6: Final answer
    x = 578,011.44

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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.