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Finding the Fourth Proportional to 525,279.66, 786,656.89 and 299,957.91

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Solution

The fourth proportional to 525,279.66, 786,656.89 and 299,957.91 is: 449,215.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,279.66 : 786,656.89 = 299,957.91 : x
  2. Step 2: Convert to fraction form
    525,279.66/786,656.89 = 299,957.91/x
  3. Step 3: Cross multiply
    525,279.66x = 786,656.89 × 299,957.91
  4. Step 4: Simplify right side
    525,279.66x = 235,963,954,036.48
  5. Step 5: Solve for x
    x = 235,963,954,036.48/525,279.66
  6. Step 6: Final answer
    x = 449,215.86

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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.