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Finding the Fourth Proportional to 635,490.69, 953,243.88 and 186,220.77

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Solution

The fourth proportional to 635,490.69, 953,243.88 and 186,220.77 is: 279,333.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,490.69 : 953,243.88 = 186,220.77 : x
  2. Step 2: Convert to fraction form
    635,490.69/953,243.88 = 186,220.77/x
  3. Step 3: Cross multiply
    635,490.69x = 953,243.88 × 186,220.77
  4. Step 4: Simplify right side
    635,490.69x = 177,513,809,331.39
  5. Step 5: Solve for x
    x = 177,513,809,331.39/635,490.69
  6. Step 6: Final answer
    x = 279,333.45

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1.5x scale

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.