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Finding the Fourth Proportional to 501,700.99, 692,347.84 and 286,845.56

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Solution

The fourth proportional to 501,700.99, 692,347.84 and 286,845.56 is: 395,847.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,700.99 : 692,347.84 = 286,845.56 : x
  2. Step 2: Convert to fraction form
    501,700.99/692,347.84 = 286,845.56/x
  3. Step 3: Cross multiply
    501,700.99x = 692,347.84 × 286,845.56
  4. Step 4: Simplify right side
    501,700.99x = 198,596,903,879.59
  5. Step 5: Solve for x
    x = 198,596,903,879.59/501,700.99
  6. Step 6: Final answer
    x = 395,847.14

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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.