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Finding the Fourth Proportional to 706,493.78, 974,987.12 and 404,746.10

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Solution

The fourth proportional to 706,493.78, 974,987.12 and 404,746.10 is: 558,564.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,493.78 : 974,987.12 = 404,746.10 : x
  2. Step 2: Convert to fraction form
    706,493.78/974,987.12 = 404,746.10/x
  3. Step 3: Cross multiply
    706,493.78x = 974,987.12 × 404,746.10
  4. Step 4: Simplify right side
    706,493.78x = 394,622,234,370.23
  5. Step 5: Solve for x
    x = 394,622,234,370.23/706,493.78
  6. Step 6: Final answer
    x = 558,564.34

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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.