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Finding the Fourth Proportional to 573,130.70, 859,696.05 and 440,266.70

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Solution

The fourth proportional to 573,130.70, 859,696.05 and 440,266.70 is: 660,400.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,130.70 : 859,696.05 = 440,266.70 : x
  2. Step 2: Convert to fraction form
    573,130.70/859,696.05 = 440,266.70/x
  3. Step 3: Cross multiply
    573,130.70x = 859,696.05 × 440,266.70
  4. Step 4: Simplify right side
    573,130.70x = 378,495,542,936.54
  5. Step 5: Solve for x
    x = 378,495,542,936.54/573,130.70
  6. Step 6: Final answer
    x = 660,400.05

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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.