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Finding the Fourth Proportional to 561,527.13, 774,687.69 and 346,293.57

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Solution

The fourth proportional to 561,527.13, 774,687.69 and 346,293.57 is: 477,749.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,527.13 : 774,687.69 = 346,293.57 : x
  2. Step 2: Convert to fraction form
    561,527.13/774,687.69 = 346,293.57/x
  3. Step 3: Cross multiply
    561,527.13x = 774,687.69 × 346,293.57
  4. Step 4: Simplify right side
    561,527.13x = 268,269,365,805.15
  5. Step 5: Solve for x
    x = 268,269,365,805.15/561,527.13
  6. Step 6: Final answer
    x = 477,749.61

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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.