Home / 691,804.80-1,036,929.60-354,715.20

Finding the Fourth Proportional to 691,804.80, 1,036,929.60 and 354,715.20

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Solution

The fourth proportional to 691,804.80, 1,036,929.60 and 354,715.20 is: 531,674.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,804.80 : 1,036,929.60 = 354,715.20 : x
  2. Step 2: Convert to fraction form
    691,804.80/1,036,929.60 = 354,715.20/x
  3. Step 3: Cross multiply
    691,804.80x = 1,036,929.60 × 354,715.20
  4. Step 4: Simplify right side
    691,804.80x = 367,814,690,449.92
  5. Step 5: Solve for x
    x = 367,814,690,449.92/691,804.80
  6. Step 6: Final answer
    x = 531,674.09

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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.