Home / 1,234,982.40-1,852,300.80-393,619.20

Finding the Fourth Proportional to 1,234,982.40, 1,852,300.80 and 393,619.20

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Solution

The fourth proportional to 1,234,982.40, 1,852,300.80 and 393,619.20 is: 590,373.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,234,982.40 : 1,852,300.80 = 393,619.20 : x
  2. Step 2: Convert to fraction form
    1,234,982.40/1,852,300.80 = 393,619.20/x
  3. Step 3: Cross multiply
    1,234,982.40x = 1,852,300.80 × 393,619.20
  4. Step 4: Simplify right side
    1,234,982.40x = 729,101,159,055.36
  5. Step 5: Solve for x
    x = 729,101,159,055.36/1,234,982.40
  6. Step 6: Final answer
    x = 590,373.72

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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.