Home / 830,865.40-1,246,233.30-325,328.20

Finding the Fourth Proportional to 830,865.40, 1,246,233.30 and 325,328.20

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Solution

The fourth proportional to 830,865.40, 1,246,233.30 and 325,328.20 is: 487,966.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,865.40 : 1,246,233.30 = 325,328.20 : x
  2. Step 2: Convert to fraction form
    830,865.40/1,246,233.30 = 325,328.20/x
  3. Step 3: Cross multiply
    830,865.40x = 1,246,233.30 × 325,328.20
  4. Step 4: Simplify right side
    830,865.40x = 405,434,836,269.06
  5. Step 5: Solve for x
    x = 405,434,836,269.06/830,865.40
  6. Step 6: Final answer
    x = 487,966.93

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Double scale
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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.