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Finding the Fourth Proportional to 610,491.40, 841,507.18 and 481,220.26

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Solution

The fourth proportional to 610,491.40, 841,507.18 and 481,220.26 is: 663,318.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,491.40 : 841,507.18 = 481,220.26 : x
  2. Step 2: Convert to fraction form
    610,491.40/841,507.18 = 481,220.26/x
  3. Step 3: Cross multiply
    610,491.40x = 841,507.18 × 481,220.26
  4. Step 4: Simplify right side
    610,491.40x = 404,950,303,951.47
  5. Step 5: Solve for x
    x = 404,950,303,951.47/610,491.40
  6. Step 6: Final answer
    x = 663,318.61

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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.