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Finding the Fourth Proportional to 705,480.12, 973,570.46 and 415,155.87

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Solution

The fourth proportional to 705,480.12, 973,570.46 and 415,155.87 is: 572,919.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,480.12 : 973,570.46 = 415,155.87 : x
  2. Step 2: Convert to fraction form
    705,480.12/973,570.46 = 415,155.87/x
  3. Step 3: Cross multiply
    705,480.12x = 973,570.46 × 415,155.87
  4. Step 4: Simplify right side
    705,480.12x = 404,183,489,251.82
  5. Step 5: Solve for x
    x = 404,183,489,251.82/705,480.12
  6. Step 6: Final answer
    x = 572,919.74

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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.