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Finding the Fourth Proportional to 688,687.89, 950,502.09 and 573,784.31

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Solution

The fourth proportional to 688,687.89, 950,502.09 and 573,784.31 is: 791,916.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,687.89 : 950,502.09 = 573,784.31 : x
  2. Step 2: Convert to fraction form
    688,687.89/950,502.09 = 573,784.31/x
  3. Step 3: Cross multiply
    688,687.89x = 950,502.09 × 573,784.31
  4. Step 4: Simplify right side
    688,687.89x = 545,383,185,864.21
  5. Step 5: Solve for x
    x = 545,383,185,864.21/688,687.89
  6. Step 6: Final answer
    x = 791,916.33

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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.