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Finding the Fourth Proportional to 668,889.52, 922,804.75 and 382,255.83

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Solution

The fourth proportional to 668,889.52, 922,804.75 and 382,255.83 is: 527,362.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,889.52 : 922,804.75 = 382,255.83 : x
  2. Step 2: Convert to fraction form
    668,889.52/922,804.75 = 382,255.83/x
  3. Step 3: Cross multiply
    668,889.52x = 922,804.75 × 382,255.83
  4. Step 4: Simplify right side
    668,889.52x = 352,747,495,639.19
  5. Step 5: Solve for x
    x = 352,747,495,639.19/668,889.52
  6. Step 6: Final answer
    x = 527,362.87

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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.