Home / 289,184.85-398,534.16-208,474.83

Finding the Fourth Proportional to 289,184.85, 398,534.16 and 208,474.83

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Solution

The fourth proportional to 289,184.85, 398,534.16 and 208,474.83 is: 287,305.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,184.85 : 398,534.16 = 208,474.83 : x
  2. Step 2: Convert to fraction form
    289,184.85/398,534.16 = 208,474.83/x
  3. Step 3: Cross multiply
    289,184.85x = 398,534.16 × 208,474.83
  4. Step 4: Simplify right side
    289,184.85x = 83,084,341,255.19
  5. Step 5: Solve for x
    x = 83,084,341,255.19/289,184.85
  6. Step 6: Final answer
    x = 287,305.30

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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.