Home / 986,506.59-1,479,810.92-312,659.49

Finding the Fourth Proportional to 986,506.59, 1,479,810.92 and 312,659.49

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Solution

The fourth proportional to 986,506.59, 1,479,810.92 and 312,659.49 is: 469,005.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,506.59 : 1,479,810.92 = 312,659.49 : x
  2. Step 2: Convert to fraction form
    986,506.59/1,479,810.92 = 312,659.49/x
  3. Step 3: Cross multiply
    986,506.59x = 1,479,810.92 × 312,659.49
  4. Step 4: Simplify right side
    986,506.59x = 462,676,925,980.33
  5. Step 5: Solve for x
    x = 462,676,925,980.33/986,506.59
  6. Step 6: Final answer
    x = 469,005.41

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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.