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Finding the Fourth Proportional to 577,716.70, 797,449.47 and 397,026.76

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Solution

The fourth proportional to 577,716.70, 797,449.47 and 397,026.76 is: 548,034.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,716.70 : 797,449.47 = 397,026.76 : x
  2. Step 2: Convert to fraction form
    577,716.70/797,449.47 = 397,026.76/x
  3. Step 3: Cross multiply
    577,716.70x = 797,449.47 × 397,026.76
  4. Step 4: Simplify right side
    577,716.70x = 316,608,779,337.82
  5. Step 5: Solve for x
    x = 316,608,779,337.82/577,716.70
  6. Step 6: Final answer
    x = 548,034.67

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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.