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Finding the Fourth Proportional to 713,043.54, 983,971.89 and 426,392.82

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Solution

The fourth proportional to 713,043.54, 983,971.89 and 426,392.82 is: 588,405.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,043.54 : 983,971.89 = 426,392.82 : x
  2. Step 2: Convert to fraction form
    713,043.54/983,971.89 = 426,392.82/x
  3. Step 3: Cross multiply
    713,043.54x = 983,971.89 × 426,392.82
  4. Step 4: Simplify right side
    713,043.54x = 419,558,548,977.83
  5. Step 5: Solve for x
    x = 419,558,548,977.83/713,043.54
  6. Step 6: Final answer
    x = 588,405.23

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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.