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Finding the Fourth Proportional to 616,087.20, 923,137.20 and 349,053.60

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Solution

The fourth proportional to 616,087.20, 923,137.20 and 349,053.60 is: 523,017.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,087.20 : 923,137.20 = 349,053.60 : x
  2. Step 2: Convert to fraction form
    616,087.20/923,137.20 = 349,053.60/x
  3. Step 3: Cross multiply
    616,087.20x = 923,137.20 × 349,053.60
  4. Step 4: Simplify right side
    616,087.20x = 322,224,362,953.92
  5. Step 5: Solve for x
    x = 322,224,362,953.92/616,087.20
  6. Step 6: Final answer
    x = 523,017.46

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1.5x scale

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.