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Finding the Fourth Proportional to 678,070.70, 936,235.23 and 594,089.90

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Solution

The fourth proportional to 678,070.70, 936,235.23 and 594,089.90 is: 820,280.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,070.70 : 936,235.23 = 594,089.90 : x
  2. Step 2: Convert to fraction form
    678,070.70/936,235.23 = 594,089.90/x
  3. Step 3: Cross multiply
    678,070.70x = 936,235.23 × 594,089.90
  4. Step 4: Simplify right side
    678,070.70x = 556,207,894,167.18
  5. Step 5: Solve for x
    x = 556,207,894,167.18/678,070.70
  6. Step 6: Final answer
    x = 820,280.09

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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.