Home / 385,896.32-578,535.35-183,390.78

Finding the Fourth Proportional to 385,896.32, 578,535.35 and 183,390.78

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Solution

The fourth proportional to 385,896.32, 578,535.35 and 183,390.78 is: 274,939.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,896.32 : 578,535.35 = 183,390.78 : x
  2. Step 2: Convert to fraction form
    385,896.32/578,535.35 = 183,390.78/x
  3. Step 3: Cross multiply
    385,896.32x = 578,535.35 × 183,390.78
  4. Step 4: Simplify right side
    385,896.32x = 106,098,050,346.63
  5. Step 5: Solve for x
    x = 106,098,050,346.63/385,896.32
  6. Step 6: Final answer
    x = 274,939.27

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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.