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Finding the Fourth Proportional to 644,928.59, 888,463.01 and 450,973.59

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Solution

The fourth proportional to 644,928.59, 888,463.01 and 450,973.59 is: 621,267.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,928.59 : 888,463.01 = 450,973.59 : x
  2. Step 2: Convert to fraction form
    644,928.59/888,463.01 = 450,973.59/x
  3. Step 3: Cross multiply
    644,928.59x = 888,463.01 × 450,973.59
  4. Step 4: Simplify right side
    644,928.59x = 400,673,350,997.60
  5. Step 5: Solve for x
    x = 400,673,350,997.60/644,928.59
  6. Step 6: Final answer
    x = 621,267.77

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Double scale
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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.