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Finding the Fourth Proportional to 368,714.64, 553,071.96 and 210,832.35

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Solution

The fourth proportional to 368,714.64, 553,071.96 and 210,832.35 is: 316,248.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,714.64 : 553,071.96 = 210,832.35 : x
  2. Step 2: Convert to fraction form
    368,714.64/553,071.96 = 210,832.35/x
  3. Step 3: Cross multiply
    368,714.64x = 553,071.96 × 210,832.35
  4. Step 4: Simplify right side
    368,714.64x = 116,605,461,045.91
  5. Step 5: Solve for x
    x = 116,605,461,045.91/368,714.64
  6. Step 6: Final answer
    x = 316,248.53

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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.