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Finding the Fourth Proportional to 499,312.44, 749,000.18 and 211,070.32

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Solution

The fourth proportional to 499,312.44, 749,000.18 and 211,070.32 is: 316,618.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,312.44 : 749,000.18 = 211,070.32 : x
  2. Step 2: Convert to fraction form
    499,312.44/749,000.18 = 211,070.32/x
  3. Step 3: Cross multiply
    499,312.44x = 749,000.18 × 211,070.32
  4. Step 4: Simplify right side
    499,312.44x = 158,091,706,617.31
  5. Step 5: Solve for x
    x = 158,091,706,617.31/499,312.44
  6. Step 6: Final answer
    x = 316,618.81

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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.