Home / 377,376.06-520,853.40-216,339.24

Finding the Fourth Proportional to 377,376.06, 520,853.40 and 216,339.24

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Solution

The fourth proportional to 377,376.06, 520,853.40 and 216,339.24 is: 298,590.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,376.06 : 520,853.40 = 216,339.24 : x
  2. Step 2: Convert to fraction form
    377,376.06/520,853.40 = 216,339.24/x
  3. Step 3: Cross multiply
    377,376.06x = 520,853.40 × 216,339.24
  4. Step 4: Simplify right side
    377,376.06x = 112,681,028,707.42
  5. Step 5: Solve for x
    x = 112,681,028,707.42/377,376.06
  6. Step 6: Final answer
    x = 298,590.82

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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.