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Finding the Fourth Proportional to 584,900.16, 807,156 and 330,236.16

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Solution

The fourth proportional to 584,900.16, 807,156 and 330,236.16 is: 455,722.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,900.16 : 807,156 = 330,236.16 : x
  2. Step 2: Convert to fraction form
    584,900.16/807,156 = 330,236.16/x
  3. Step 3: Cross multiply
    584,900.16x = 807,156 × 330,236.16
  4. Step 4: Simplify right side
    584,900.16x = 266,552,097,960.96
  5. Step 5: Solve for x
    x = 266,552,097,960.96/584,900.16
  6. Step 6: Final answer
    x = 455,722.39

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Double scale
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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.