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Finding the Fourth Proportional to 963,725.85, 1,327,800.60 and 636,457.70

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Solution

The fourth proportional to 963,725.85, 1,327,800.60 and 636,457.70 is: 876,897.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    963,725.85 : 1,327,800.60 = 636,457.70 : x
  2. Step 2: Convert to fraction form
    963,725.85/1,327,800.60 = 636,457.70/x
  3. Step 3: Cross multiply
    963,725.85x = 1,327,800.60 × 636,457.70
  4. Step 4: Simplify right side
    963,725.85x = 845,088,919,254.12
  5. Step 5: Solve for x
    x = 845,088,919,254.12/963,725.85
  6. Step 6: Final answer
    x = 876,897.64

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Double scale
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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.