Home / 397,088.55-547,986.48-215,803.53

Finding the Fourth Proportional to 397,088.55, 547,986.48 and 215,803.53

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Solution

The fourth proportional to 397,088.55, 547,986.48 and 215,803.53 is: 297,811.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,088.55 : 547,986.48 = 215,803.53 : x
  2. Step 2: Convert to fraction form
    397,088.55/547,986.48 = 215,803.53/x
  3. Step 3: Cross multiply
    397,088.55x = 547,986.48 × 215,803.53
  4. Step 4: Simplify right side
    397,088.55x = 118,257,416,776.27
  5. Step 5: Solve for x
    x = 118,257,416,776.27/397,088.55
  6. Step 6: Final answer
    x = 297,811.20

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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.