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Finding the Fourth Proportional to 519,888.15, 779,832.23 and 519,888.15

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Solution

The fourth proportional to 519,888.15, 779,832.23 and 519,888.15 is: 779,832.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,888.15 : 779,832.23 = 519,888.15 : x
  2. Step 2: Convert to fraction form
    519,888.15/779,832.23 = 519,888.15/x
  3. Step 3: Cross multiply
    519,888.15x = 779,832.23 × 519,888.15
  4. Step 4: Simplify right side
    519,888.15x = 405,425,535,365.08
  5. Step 5: Solve for x
    x = 405,425,535,365.08/519,888.15
  6. Step 6: Final answer
    x = 779,832.23

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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.