Home / 986,561.85-1,479,883.93-312,628.23

Finding the Fourth Proportional to 986,561.85, 1,479,883.93 and 312,628.23

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Solution

The fourth proportional to 986,561.85, 1,479,883.93 and 312,628.23 is: 468,955.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,561.85 : 1,479,883.93 = 312,628.23 : x
  2. Step 2: Convert to fraction form
    986,561.85/1,479,883.93 = 312,628.23/x
  3. Step 3: Cross multiply
    986,561.85x = 1,479,883.93 × 312,628.23
  4. Step 4: Simplify right side
    986,561.85x = 462,653,493,641.34
  5. Step 5: Solve for x
    x = 462,653,493,641.34/986,561.85
  6. Step 6: Final answer
    x = 468,955.39

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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.