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Finding the Fourth Proportional to 688,609.76, 950,754.51 and 430,598.43

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Solution

The fourth proportional to 688,609.76, 950,754.51 and 430,598.43 is: 594,521.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,609.76 : 950,754.51 = 430,598.43 : x
  2. Step 2: Convert to fraction form
    688,609.76/950,754.51 = 430,598.43/x
  3. Step 3: Cross multiply
    688,609.76x = 950,754.51 × 430,598.43
  4. Step 4: Simplify right side
    688,609.76x = 409,393,399,321.42
  5. Step 5: Solve for x
    x = 409,393,399,321.42/688,609.76
  6. Step 6: Final answer
    x = 594,521.64

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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.