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Finding the Fourth Proportional to 680,659.34, 937,284.08 and 665,555.00

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Solution

The fourth proportional to 680,659.34, 937,284.08 and 665,555.00 is: 916,485.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,659.34 : 937,284.08 = 665,555.00 : x
  2. Step 2: Convert to fraction form
    680,659.34/937,284.08 = 665,555.00/x
  3. Step 3: Cross multiply
    680,659.34x = 937,284.08 × 665,555.00
  4. Step 4: Simplify right side
    680,659.34x = 623,814,097,850.21
  5. Step 5: Solve for x
    x = 623,814,097,850.21/680,659.34
  6. Step 6: Final answer
    x = 916,485.04

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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.