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Finding the Fourth Proportional to 487,917.80, 733,626.30 and 410,935.40

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Solution

The fourth proportional to 487,917.80, 733,626.30 and 410,935.40 is: 617,876.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,917.80 : 733,626.30 = 410,935.40 : x
  2. Step 2: Convert to fraction form
    487,917.80/733,626.30 = 410,935.40/x
  3. Step 3: Cross multiply
    487,917.80x = 733,626.30 × 410,935.40
  4. Step 4: Simplify right side
    487,917.80x = 301,473,017,041.02
  5. Step 5: Solve for x
    x = 301,473,017,041.02/487,917.80
  6. Step 6: Final answer
    x = 617,876.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.