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Finding the Fourth Proportional to 710,730, 1,066,279.68 and 212,094

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Solution

The fourth proportional to 710,730, 1,066,279.68 and 212,094 is: 318,196.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,730 : 1,066,279.68 = 212,094 : x
  2. Step 2: Convert to fraction form
    710,730/1,066,279.68 = 212,094/x
  3. Step 3: Cross multiply
    710,730x = 1,066,279.68 × 212,094
  4. Step 4: Simplify right side
    710,730x = 226,151,522,449.92
  5. Step 5: Solve for x
    x = 226,151,522,449.92/710,730
  6. Step 6: Final answer
    x = 318,196.11

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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.