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Finding the Fourth Proportional to 688,687.64, 950,501.74 and 573,784.06

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Solution

The fourth proportional to 688,687.64, 950,501.74 and 573,784.06 is: 791,915.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,687.64 : 950,501.74 = 573,784.06 : x
  2. Step 2: Convert to fraction form
    688,687.64/950,501.74 = 573,784.06/x
  3. Step 3: Cross multiply
    688,687.64x = 950,501.74 × 573,784.06
  4. Step 4: Simplify right side
    688,687.64x = 545,382,747,414.26
  5. Step 5: Solve for x
    x = 545,382,747,414.26/688,687.64
  6. Step 6: Final answer
    x = 791,915.98

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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.