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Finding the Fourth Proportional to 534,526.99, 801,783.79 and 129,722.56

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Solution

The fourth proportional to 534,526.99, 801,783.79 and 129,722.56 is: 194,582.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,526.99 : 801,783.79 = 129,722.56 : x
  2. Step 2: Convert to fraction form
    534,526.99/801,783.79 = 129,722.56/x
  3. Step 3: Cross multiply
    534,526.99x = 801,783.79 × 129,722.56
  4. Step 4: Simplify right side
    534,526.99x = 104,009,443,476.54
  5. Step 5: Solve for x
    x = 104,009,443,476.54/534,526.99
  6. Step 6: Final answer
    x = 194,582.21

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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.