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Finding the Fourth Proportional to 714,827.22, 986,468.42 and 392,544.06

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Solution

The fourth proportional to 714,827.22, 986,468.42 and 392,544.06 is: 541,714.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,827.22 : 986,468.42 = 392,544.06 : x
  2. Step 2: Convert to fraction form
    714,827.22/986,468.42 = 392,544.06/x
  3. Step 3: Cross multiply
    714,827.22x = 986,468.42 × 392,544.06
  4. Step 4: Simplify right side
    714,827.22x = 387,232,318,648.59
  5. Step 5: Solve for x
    x = 387,232,318,648.59/714,827.22
  6. Step 6: Final answer
    x = 541,714.57

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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.