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Finding the Fourth Proportional to 624,347.80, 936,426.66 and 203,623

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Solution

The fourth proportional to 624,347.80, 936,426.66 and 203,623 is: 305,403.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,347.80 : 936,426.66 = 203,623 : x
  2. Step 2: Convert to fraction form
    624,347.80/936,426.66 = 203,623/x
  3. Step 3: Cross multiply
    624,347.80x = 936,426.66 × 203,623
  4. Step 4: Simplify right side
    624,347.80x = 190,678,005,789.18
  5. Step 5: Solve for x
    x = 190,678,005,789.18/624,347.80
  6. Step 6: Final answer
    x = 305,403.50

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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.