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Finding the Fourth Proportional to 688,170.01, 949,661.93 and 382,234.23

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Solution

The fourth proportional to 688,170.01, 949,661.93 and 382,234.23 is: 527,476.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,170.01 : 949,661.93 = 382,234.23 : x
  2. Step 2: Convert to fraction form
    688,170.01/949,661.93 = 382,234.23/x
  3. Step 3: Cross multiply
    688,170.01x = 949,661.93 × 382,234.23
  4. Step 4: Simplify right side
    688,170.01x = 362,993,296,573.86
  5. Step 5: Solve for x
    x = 362,993,296,573.86/688,170.01
  6. Step 6: Final answer
    x = 527,476.19

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Double scale
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Similar ratio
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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.