Home / 520,239.17-780,421.23-183,210.12

Finding the Fourth Proportional to 520,239.17, 780,421.23 and 183,210.12

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Solution

The fourth proportional to 520,239.17, 780,421.23 and 183,210.12 is: 274,837.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,239.17 : 780,421.23 = 183,210.12 : x
  2. Step 2: Convert to fraction form
    520,239.17/780,421.23 = 183,210.12/x
  3. Step 3: Cross multiply
    520,239.17x = 780,421.23 × 183,210.12
  4. Step 4: Simplify right side
    520,239.17x = 142,981,067,198.85
  5. Step 5: Solve for x
    x = 142,981,067,198.85/520,239.17
  6. Step 6: Final answer
    x = 274,837.18

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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.