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Finding the Fourth Proportional to 641,131.67, 888,807.74 and 607,003.54

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Solution

The fourth proportional to 641,131.67, 888,807.74 and 607,003.54 is: 841,495.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,131.67 : 888,807.74 = 607,003.54 : x
  2. Step 2: Convert to fraction form
    641,131.67/888,807.74 = 607,003.54/x
  3. Step 3: Cross multiply
    641,131.67x = 888,807.74 × 607,003.54
  4. Step 4: Simplify right side
    641,131.67x = 539,509,439,302.36
  5. Step 5: Solve for x
    x = 539,509,439,302.36/641,131.67
  6. Step 6: Final answer
    x = 841,495.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.