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Finding the Fourth Proportional to 891,044.66, 1,336,813.86 and 411,419

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Solution

The fourth proportional to 891,044.66, 1,336,813.86 and 411,419 is: 617,242.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,044.66 : 1,336,813.86 = 411,419 : x
  2. Step 2: Convert to fraction form
    891,044.66/1,336,813.86 = 411,419/x
  3. Step 3: Cross multiply
    891,044.66x = 1,336,813.86 × 411,419
  4. Step 4: Simplify right side
    891,044.66x = 549,990,621,467.34
  5. Step 5: Solve for x
    x = 549,990,621,467.34/891,044.66
  6. Step 6: Final answer
    x = 617,242.49

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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.