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Finding the Fourth Proportional to 678,937.58, 936,949.50 and 373,033.06

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Solution

The fourth proportional to 678,937.58, 936,949.50 and 373,033.06 is: 514,794.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,937.58 : 936,949.50 = 373,033.06 : x
  2. Step 2: Convert to fraction form
    678,937.58/936,949.50 = 373,033.06/x
  3. Step 3: Cross multiply
    678,937.58x = 936,949.50 × 373,033.06
  4. Step 4: Simplify right side
    678,937.58x = 349,513,139,050.47
  5. Step 5: Solve for x
    x = 349,513,139,050.47/678,937.58
  6. Step 6: Final answer
    x = 514,794.22

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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.