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Finding the Fourth Proportional to 616,158.90, 850,215.15 and 344,193.17

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Solution

The fourth proportional to 616,158.90, 850,215.15 and 344,193.17 is: 474,939.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,158.90 : 850,215.15 = 344,193.17 : x
  2. Step 2: Convert to fraction form
    616,158.90/850,215.15 = 344,193.17/x
  3. Step 3: Cross multiply
    616,158.90x = 850,215.15 × 344,193.17
  4. Step 4: Simplify right side
    616,158.90x = 292,638,243,409.45
  5. Step 5: Solve for x
    x = 292,638,243,409.45/616,158.90
  6. Step 6: Final answer
    x = 474,939.57

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1.5x scale

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.