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Finding the Fourth Proportional to 688,564.40, 950,193.60 and 382,659.80

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Solution

The fourth proportional to 688,564.40, 950,193.60 and 382,659.80 is: 528,056.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,564.40 : 950,193.60 = 382,659.80 : x
  2. Step 2: Convert to fraction form
    688,564.40/950,193.60 = 382,659.80/x
  3. Step 3: Cross multiply
    688,564.40x = 950,193.60 × 382,659.80
  4. Step 4: Simplify right side
    688,564.40x = 363,600,892,937.28
  5. Step 5: Solve for x
    x = 363,600,892,937.28/688,564.40
  6. Step 6: Final answer
    x = 528,056.48

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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.