Home / 388,914.30-584,027.55-256,382.10

Finding the Fourth Proportional to 388,914.30, 584,027.55 and 256,382.10

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Solution

The fourth proportional to 388,914.30, 584,027.55 and 256,382.10 is: 385,005.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,914.30 : 584,027.55 = 256,382.10 : x
  2. Step 2: Convert to fraction form
    388,914.30/584,027.55 = 256,382.10/x
  3. Step 3: Cross multiply
    388,914.30x = 584,027.55 × 256,382.10
  4. Step 4: Simplify right side
    388,914.30x = 149,734,209,726.86
  5. Step 5: Solve for x
    x = 149,734,209,726.86/388,914.30
  6. Step 6: Final answer
    x = 385,005.67

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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.