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Finding the Fourth Proportional to 411,120.64, 567,315.12 and 249,953.36

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Solution

The fourth proportional to 411,120.64, 567,315.12 and 249,953.36 is: 344,916.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,120.64 : 567,315.12 = 249,953.36 : x
  2. Step 2: Convert to fraction form
    411,120.64/567,315.12 = 249,953.36/x
  3. Step 3: Cross multiply
    411,120.64x = 567,315.12 × 249,953.36
  4. Step 4: Simplify right side
    411,120.64x = 141,802,320,422.80
  5. Step 5: Solve for x
    x = 141,802,320,422.80/411,120.64
  6. Step 6: Final answer
    x = 344,916.57

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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.