Home / 354,646,549.20-531,969,823.80-290,873,629.20

Finding the Fourth Proportional to 354,646,549.20, 531,969,823.80 and 290,873,629.20

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Solution

The fourth proportional to 354,646,549.20, 531,969,823.80 and 290,873,629.20 is: 436,310,443.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,646,549.20 : 531,969,823.80 = 290,873,629.20 : x
  2. Step 2: Convert to fraction form
    354,646,549.20/531,969,823.80 = 290,873,629.20/x
  3. Step 3: Cross multiply
    354,646,549.20x = 531,969,823.80 × 290,873,629.20
  4. Step 4: Simplify right side
    354,646,549.20x = 154,735,993,273,590,528
  5. Step 5: Solve for x
    x = 154,735,993,273,590,528/354,646,549.20
  6. Step 6: Final answer
    x = 436,310,443.80

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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.