Home / 830,326.40-1,247,822.40-727,683.20

Finding the Fourth Proportional to 830,326.40, 1,247,822.40 and 727,683.20

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Solution

The fourth proportional to 830,326.40, 1,247,822.40 and 727,683.20 is: 1,093,569.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,326.40 : 1,247,822.40 = 727,683.20 : x
  2. Step 2: Convert to fraction form
    830,326.40/1,247,822.40 = 727,683.20/x
  3. Step 3: Cross multiply
    830,326.40x = 1,247,822.40 × 727,683.20
  4. Step 4: Simplify right side
    830,326.40x = 908,019,397,063.68
  5. Step 5: Solve for x
    x = 908,019,397,063.68/830,326.40
  6. Step 6: Final answer
    x = 1,093,569.22

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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.