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Finding the Fourth Proportional to 521,135.40, 781,703.10 and 184,556.10

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Solution

The fourth proportional to 521,135.40, 781,703.10 and 184,556.10 is: 276,834.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,135.40 : 781,703.10 = 184,556.10 : x
  2. Step 2: Convert to fraction form
    521,135.40/781,703.10 = 184,556.10/x
  3. Step 3: Cross multiply
    521,135.40x = 781,703.10 × 184,556.10
  4. Step 4: Simplify right side
    521,135.40x = 144,268,075,493.91
  5. Step 5: Solve for x
    x = 144,268,075,493.91/521,135.40
  6. Step 6: Final answer
    x = 276,834.15

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Similar ratio
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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.