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Finding the Fourth Proportional to 368,586.94, 508,454.89 and 253,666.07

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Solution

The fourth proportional to 368,586.94, 508,454.89 and 253,666.07 is: 349,924.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,586.94 : 508,454.89 = 253,666.07 : x
  2. Step 2: Convert to fraction form
    368,586.94/508,454.89 = 253,666.07/x
  3. Step 3: Cross multiply
    368,586.94x = 508,454.89 × 253,666.07
  4. Step 4: Simplify right side
    368,586.94x = 128,977,751,732.26
  5. Step 5: Solve for x
    x = 128,977,751,732.26/368,586.94
  6. Step 6: Final answer
    x = 349,924.91

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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.