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Finding the Fourth Proportional to 424,887.60, 586,361.61 and 233,918.76

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Solution

The fourth proportional to 424,887.60, 586,361.61 and 233,918.76 is: 322,817.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,887.60 : 586,361.61 = 233,918.76 : x
  2. Step 2: Convert to fraction form
    424,887.60/586,361.61 = 233,918.76/x
  3. Step 3: Cross multiply
    424,887.60x = 586,361.61 × 233,918.76
  4. Step 4: Simplify right side
    424,887.60x = 137,160,980,722.80
  5. Step 5: Solve for x
    x = 137,160,980,722.80/424,887.60
  6. Step 6: Final answer
    x = 322,817.09

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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.