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Finding the Fourth Proportional to 556,100.79, 833,421.96 and 316,324.95

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Solution

The fourth proportional to 556,100.79, 833,421.96 and 316,324.95 is: 474,072.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,100.79 : 833,421.96 = 316,324.95 : x
  2. Step 2: Convert to fraction form
    556,100.79/833,421.96 = 316,324.95/x
  3. Step 3: Cross multiply
    556,100.79x = 833,421.96 × 316,324.95
  4. Step 4: Simplify right side
    556,100.79x = 263,632,156,700.57
  5. Step 5: Solve for x
    x = 263,632,156,700.57/556,100.79
  6. Step 6: Final answer
    x = 474,072.62

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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.