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Finding the Fourth Proportional to 610,612.71, 916,002.36 and 211,146.23

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Solution

The fourth proportional to 610,612.71, 916,002.36 and 211,146.23 is: 316,748.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,612.71 : 916,002.36 = 211,146.23 : x
  2. Step 2: Convert to fraction form
    610,612.71/916,002.36 = 211,146.23/x
  3. Step 3: Cross multiply
    610,612.71x = 916,002.36 × 211,146.23
  4. Step 4: Simplify right side
    610,612.71x = 193,410,440,405.09
  5. Step 5: Solve for x
    x = 193,410,440,405.09/610,612.71
  6. Step 6: Final answer
    x = 316,748.14

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1.5x scale

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.