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Finding the Fourth Proportional to 704,730.66, 972,528.90 and 382,440.72

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Solution

The fourth proportional to 704,730.66, 972,528.90 and 382,440.72 is: 527,768.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,730.66 : 972,528.90 = 382,440.72 : x
  2. Step 2: Convert to fraction form
    704,730.66/972,528.90 = 382,440.72/x
  3. Step 3: Cross multiply
    704,730.66x = 972,528.90 × 382,440.72
  4. Step 4: Simplify right side
    704,730.66x = 371,934,652,736.81
  5. Step 5: Solve for x
    x = 371,934,652,736.81/704,730.66
  6. Step 6: Final answer
    x = 527,768.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.