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Finding the Fourth Proportional to 462,700.20, 695,087.10 and 443,807.40

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Solution

The fourth proportional to 462,700.20, 695,087.10 and 443,807.40 is: 666,705.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,700.20 : 695,087.10 = 443,807.40 : x
  2. Step 2: Convert to fraction form
    462,700.20/695,087.10 = 443,807.40/x
  3. Step 3: Cross multiply
    462,700.20x = 695,087.10 × 443,807.40
  4. Step 4: Simplify right side
    462,700.20x = 308,484,798,624.54
  5. Step 5: Solve for x
    x = 308,484,798,624.54/462,700.20
  6. Step 6: Final answer
    x = 666,705.57

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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.