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Finding the Fourth Proportional to 576,727.80, 864,054.90 and 470,974.20

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Solution

The fourth proportional to 576,727.80, 864,054.90 and 470,974.20 is: 705,614.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,727.80 : 864,054.90 = 470,974.20 : x
  2. Step 2: Convert to fraction form
    576,727.80/864,054.90 = 470,974.20/x
  3. Step 3: Cross multiply
    576,727.80x = 864,054.90 × 470,974.20
  4. Step 4: Simplify right side
    576,727.80x = 406,947,565,283.58
  5. Step 5: Solve for x
    x = 406,947,565,283.58/576,727.80
  6. Step 6: Final answer
    x = 705,614.62

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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.