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Finding the Fourth Proportional to 704,822.76, 972,664.74 and 382,536.72

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Solution

The fourth proportional to 704,822.76, 972,664.74 and 382,536.72 is: 527,905.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,822.76 : 972,664.74 = 382,536.72 : x
  2. Step 2: Convert to fraction form
    704,822.76/972,664.74 = 382,536.72/x
  3. Step 3: Cross multiply
    704,822.76x = 972,664.74 × 382,536.72
  4. Step 4: Simplify right side
    704,822.76x = 372,079,979,299.25
  5. Step 5: Solve for x
    x = 372,079,979,299.25/704,822.76
  6. Step 6: Final answer
    x = 527,905.74

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1.5x scale

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.