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Finding the Fourth Proportional to 516,547.80, 774,821.70 and 483,086.70

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Solution

The fourth proportional to 516,547.80, 774,821.70 and 483,086.70 is: 724,630.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,547.80 : 774,821.70 = 483,086.70 : x
  2. Step 2: Convert to fraction form
    516,547.80/774,821.70 = 483,086.70/x
  3. Step 3: Cross multiply
    516,547.80x = 774,821.70 × 483,086.70
  4. Step 4: Simplify right side
    516,547.80x = 374,306,058,141.39
  5. Step 5: Solve for x
    x = 374,306,058,141.39/516,547.80
  6. Step 6: Final answer
    x = 724,630.05

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Double scale
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Similar ratio
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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.