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Finding the Fourth Proportional to 714,833.52, 986,477.09 and 392,550.36

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Solution

The fourth proportional to 714,833.52, 986,477.09 and 392,550.36 is: 541,723.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,833.52 : 986,477.09 = 392,550.36 : x
  2. Step 2: Convert to fraction form
    714,833.52/986,477.09 = 392,550.36/x
  3. Step 3: Cross multiply
    714,833.52x = 986,477.09 × 392,550.36
  4. Step 4: Simplify right side
    714,833.52x = 387,241,934,848.50
  5. Step 5: Solve for x
    x = 387,241,934,848.50/714,833.52
  6. Step 6: Final answer
    x = 541,723.25

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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.