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Finding the Fourth Proportional to 517,265.58, 774,889.74 and 291,944.46

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Solution

The fourth proportional to 517,265.58, 774,889.74 and 291,944.46 is: 437,347.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,265.58 : 774,889.74 = 291,944.46 : x
  2. Step 2: Convert to fraction form
    517,265.58/774,889.74 = 291,944.46/x
  3. Step 3: Cross multiply
    517,265.58x = 774,889.74 × 291,944.46
  4. Step 4: Simplify right side
    517,265.58x = 226,224,766,703.84
  5. Step 5: Solve for x
    x = 226,224,766,703.84/517,265.58
  6. Step 6: Final answer
    x = 437,347.42

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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.