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Finding the Fourth Proportional to 676,700.05, 1,014,978.55 and 356,723.73

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Solution

The fourth proportional to 676,700.05, 1,014,978.55 and 356,723.73 is: 535,047.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,700.05 : 1,014,978.55 = 356,723.73 : x
  2. Step 2: Convert to fraction form
    676,700.05/1,014,978.55 = 356,723.73/x
  3. Step 3: Cross multiply
    676,700.05x = 1,014,978.55 × 356,723.73
  4. Step 4: Simplify right side
    676,700.05x = 362,066,934,225.99
  5. Step 5: Solve for x
    x = 362,066,934,225.99/676,700.05
  6. Step 6: Final answer
    x = 535,047.89

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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.