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Finding the Fourth Proportional to 576,139.45, 795,390.89 and 346,753.05

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Solution

The fourth proportional to 576,139.45, 795,390.89 and 346,753.05 is: 478,710.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,139.45 : 795,390.89 = 346,753.05 : x
  2. Step 2: Convert to fraction form
    576,139.45/795,390.89 = 346,753.05/x
  3. Step 3: Cross multiply
    576,139.45x = 795,390.89 × 346,753.05
  4. Step 4: Simplify right side
    576,139.45x = 275,804,218,757.79
  5. Step 5: Solve for x
    x = 275,804,218,757.79/576,139.45
  6. Step 6: Final answer
    x = 478,710.87

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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.