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Finding the Fourth Proportional to 501,699.99, 692,346.46 and 286,844.56

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Solution

The fourth proportional to 501,699.99, 692,346.46 and 286,844.56 is: 395,845.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,699.99 : 692,346.46 = 286,844.56 : x
  2. Step 2: Convert to fraction form
    501,699.99/692,346.46 = 286,844.56/x
  3. Step 3: Cross multiply
    501,699.99x = 692,346.46 × 286,844.56
  4. Step 4: Simplify right side
    501,699.99x = 198,595,813,238.28
  5. Step 5: Solve for x
    x = 198,595,813,238.28/501,699.99
  6. Step 6: Final answer
    x = 395,845.76

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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.