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Finding the Fourth Proportional to 453,300.78, 625,535.78 and 249,338.76

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Solution

The fourth proportional to 453,300.78, 625,535.78 and 249,338.76 is: 344,076.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,300.78 : 625,535.78 = 249,338.76 : x
  2. Step 2: Convert to fraction form
    453,300.78/625,535.78 = 249,338.76/x
  3. Step 3: Cross multiply
    453,300.78x = 625,535.78 × 249,338.76
  4. Step 4: Simplify right side
    453,300.78x = 155,970,315,720.83
  5. Step 5: Solve for x
    x = 155,970,315,720.83/453,300.78
  6. Step 6: Final answer
    x = 344,076.87

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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.