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Finding the Fourth Proportional to 616,392.94, 850,619.76 and 344,460.76

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Solution

The fourth proportional to 616,392.94, 850,619.76 and 344,460.76 is: 475,354.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,392.94 : 850,619.76 = 344,460.76 : x
  2. Step 2: Convert to fraction form
    616,392.94/850,619.76 = 344,460.76/x
  3. Step 3: Cross multiply
    616,392.94x = 850,619.76 × 344,460.76
  4. Step 4: Simplify right side
    616,392.94x = 293,005,129,000.62
  5. Step 5: Solve for x
    x = 293,005,129,000.62/616,392.94
  6. Step 6: Final answer
    x = 475,354.45

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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.