Home / 419,623.74-579,085.02-228,640.32

Finding the Fourth Proportional to 419,623.74, 579,085.02 and 228,640.32

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Solution

The fourth proportional to 419,623.74, 579,085.02 and 228,640.32 is: 315,525.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,623.74 : 579,085.02 = 228,640.32 : x
  2. Step 2: Convert to fraction form
    419,623.74/579,085.02 = 228,640.32/x
  3. Step 3: Cross multiply
    419,623.74x = 579,085.02 × 228,640.32
  4. Step 4: Simplify right side
    419,623.74x = 132,402,184,280.01
  5. Step 5: Solve for x
    x = 132,402,184,280.01/419,623.74
  6. Step 6: Final answer
    x = 315,525.96

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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.