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Finding the Fourth Proportional to 736,700, 1,105,050.32 and 331,418.84

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Solution

The fourth proportional to 736,700, 1,105,050.32 and 331,418.84 is: 497,128.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    736,700 : 1,105,050.32 = 331,418.84 : x
  2. Step 2: Convert to fraction form
    736,700/1,105,050.32 = 331,418.84/x
  3. Step 3: Cross multiply
    736,700x = 1,105,050.32 × 331,418.84
  4. Step 4: Simplify right side
    736,700x = 366,234,495,196.03
  5. Step 5: Solve for x
    x = 366,234,495,196.03/736,700
  6. Step 6: Final answer
    x = 497,128.40

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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.