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Finding the Fourth Proportional to 894,865.98, 1,341,642.84 and 421,293

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Solution

The fourth proportional to 894,865.98, 1,341,642.84 and 421,293 is: 631,630.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    894,865.98 : 1,341,642.84 = 421,293 : x
  2. Step 2: Convert to fraction form
    894,865.98/1,341,642.84 = 421,293/x
  3. Step 3: Cross multiply
    894,865.98x = 1,341,642.84 × 421,293
  4. Step 4: Simplify right side
    894,865.98x = 565,224,736,992.12
  5. Step 5: Solve for x
    x = 565,224,736,992.12/894,865.98
  6. Step 6: Final answer
    x = 631,630.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.