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Finding the Fourth Proportional to 569,113.20, 853,669.80 and 303,392.70

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Solution

The fourth proportional to 569,113.20, 853,669.80 and 303,392.70 is: 455,089.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,113.20 : 853,669.80 = 303,392.70 : x
  2. Step 2: Convert to fraction form
    569,113.20/853,669.80 = 303,392.70/x
  3. Step 3: Cross multiply
    569,113.20x = 853,669.80 × 303,392.70
  4. Step 4: Simplify right side
    569,113.20x = 258,997,185,530.46
  5. Step 5: Solve for x
    x = 258,997,185,530.46/569,113.20
  6. Step 6: Final answer
    x = 455,089.05

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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.