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Finding the Fourth Proportional to 604,816.38, 834,298.98 and 378,068.22

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Solution

The fourth proportional to 604,816.38, 834,298.98 and 378,068.22 is: 521,516.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,816.38 : 834,298.98 = 378,068.22 : x
  2. Step 2: Convert to fraction form
    604,816.38/834,298.98 = 378,068.22/x
  3. Step 3: Cross multiply
    604,816.38x = 834,298.98 × 378,068.22
  4. Step 4: Simplify right side
    604,816.38x = 315,421,930,316.42
  5. Step 5: Solve for x
    x = 315,421,930,316.42/604,816.38
  6. Step 6: Final answer
    x = 521,516.85

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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.