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Finding the Fourth Proportional to 497,775.20, 686,929.20 and 293,826.40

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Solution

The fourth proportional to 497,775.20, 686,929.20 and 293,826.40 is: 405,480.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,775.20 : 686,929.20 = 293,826.40 : x
  2. Step 2: Convert to fraction form
    497,775.20/686,929.20 = 293,826.40/x
  3. Step 3: Cross multiply
    497,775.20x = 686,929.20 × 293,826.40
  4. Step 4: Simplify right side
    497,775.20x = 201,837,933,890.88
  5. Step 5: Solve for x
    x = 201,837,933,890.88/497,775.20
  6. Step 6: Final answer
    x = 405,480.09

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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.