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Finding the Fourth Proportional to 520,058.18, 717,466.57 and 316,076.24

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Solution

The fourth proportional to 520,058.18, 717,466.57 and 316,076.24 is: 436,055.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,058.18 : 717,466.57 = 316,076.24 : x
  2. Step 2: Convert to fraction form
    520,058.18/717,466.57 = 316,076.24/x
  3. Step 3: Cross multiply
    520,058.18x = 717,466.57 × 316,076.24
  4. Step 4: Simplify right side
    520,058.18x = 226,774,132,183.96
  5. Step 5: Solve for x
    x = 226,774,132,183.96/520,058.18
  6. Step 6: Final answer
    x = 436,055.32

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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.