Home / 1,071,821.58-1,606,509.35-431,715.61

Finding the Fourth Proportional to 1,071,821.58, 1,606,509.35 and 431,715.61

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Solution

The fourth proportional to 1,071,821.58, 1,606,509.35 and 431,715.61 is: 647,080.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071,821.58 : 1,606,509.35 = 431,715.61 : x
  2. Step 2: Convert to fraction form
    1,071,821.58/1,606,509.35 = 431,715.61/x
  3. Step 3: Cross multiply
    1,071,821.58x = 1,606,509.35 × 431,715.61
  4. Step 4: Simplify right side
    1,071,821.58x = 693,555,160,956.14
  5. Step 5: Solve for x
    x = 693,555,160,956.14/1,071,821.58
  6. Step 6: Final answer
    x = 647,080.80

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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.