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Finding the Fourth Proportional to 670,923.50, 925,874.43 and 369,111.02

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Solution

The fourth proportional to 670,923.50, 925,874.43 and 369,111.02 is: 509,373.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,923.50 : 925,874.43 = 369,111.02 : x
  2. Step 2: Convert to fraction form
    670,923.50/925,874.43 = 369,111.02/x
  3. Step 3: Cross multiply
    670,923.50x = 925,874.43 × 369,111.02
  4. Step 4: Simplify right side
    670,923.50x = 341,750,455,249.22
  5. Step 5: Solve for x
    x = 341,750,455,249.22/670,923.50
  6. Step 6: Final answer
    x = 509,373.21

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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.