Home / 811,618.80-1,217,428.20-496,690.80

Finding the Fourth Proportional to 811,618.80, 1,217,428.20 and 496,690.80

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Solution

The fourth proportional to 811,618.80, 1,217,428.20 and 496,690.80 is: 745,036.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,618.80 : 1,217,428.20 = 496,690.80 : x
  2. Step 2: Convert to fraction form
    811,618.80/1,217,428.20 = 496,690.80/x
  3. Step 3: Cross multiply
    811,618.80x = 1,217,428.20 × 496,690.80
  4. Step 4: Simplify right side
    811,618.80x = 604,685,386,600.56
  5. Step 5: Solve for x
    x = 604,685,386,600.56/811,618.80
  6. Step 6: Final answer
    x = 745,036.20

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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.