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Finding the Fourth Proportional to 279,464.56, 386,053.14 and 249,240.16

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Solution

The fourth proportional to 279,464.56, 386,053.14 and 249,240.16 is: 344,301.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,464.56 : 386,053.14 = 249,240.16 : x
  2. Step 2: Convert to fraction form
    279,464.56/386,053.14 = 249,240.16/x
  3. Step 3: Cross multiply
    279,464.56x = 386,053.14 × 249,240.16
  4. Step 4: Simplify right side
    279,464.56x = 96,219,946,382.10
  5. Step 5: Solve for x
    x = 96,219,946,382.10/279,464.56
  6. Step 6: Final answer
    x = 344,301.07

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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.