Home / 393,918.16-543,599.64-240,945.10

Finding the Fourth Proportional to 393,918.16, 543,599.64 and 240,945.10

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Solution

The fourth proportional to 393,918.16, 543,599.64 and 240,945.10 is: 332,499.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,918.16 : 543,599.64 = 240,945.10 : x
  2. Step 2: Convert to fraction form
    393,918.16/543,599.64 = 240,945.10/x
  3. Step 3: Cross multiply
    393,918.16x = 543,599.64 × 240,945.10
  4. Step 4: Simplify right side
    393,918.16x = 130,977,669,619.76
  5. Step 5: Solve for x
    x = 130,977,669,619.76/393,918.16
  6. Step 6: Final answer
    x = 332,499.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.