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Finding the Fourth Proportional to 605,053.80, 907,580.70 and 559,434.60

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Solution

The fourth proportional to 605,053.80, 907,580.70 and 559,434.60 is: 839,151.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,053.80 : 907,580.70 = 559,434.60 : x
  2. Step 2: Convert to fraction form
    605,053.80/907,580.70 = 559,434.60/x
  3. Step 3: Cross multiply
    605,053.80x = 907,580.70 × 559,434.60
  4. Step 4: Simplify right side
    605,053.80x = 507,732,045,872.22
  5. Step 5: Solve for x
    x = 507,732,045,872.22/605,053.80
  6. Step 6: Final answer
    x = 839,151.90

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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.