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Finding the Fourth Proportional to 776,352, 1,164,528.54 and 215,387.04

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Solution

The fourth proportional to 776,352, 1,164,528.54 and 215,387.04 is: 323,080.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,352 : 1,164,528.54 = 215,387.04 : x
  2. Step 2: Convert to fraction form
    776,352/1,164,528.54 = 215,387.04/x
  3. Step 3: Cross multiply
    776,352x = 1,164,528.54 × 215,387.04
  4. Step 4: Simplify right side
    776,352x = 250,824,355,226.12
  5. Step 5: Solve for x
    x = 250,824,355,226.12/776,352
  6. Step 6: Final answer
    x = 323,080.71

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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.