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Finding the Fourth Proportional to 676,713.25, 933,852.09 and 401,256.50

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Solution

The fourth proportional to 676,713.25, 933,852.09 and 401,256.50 is: 553,726.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,713.25 : 933,852.09 = 401,256.50 : x
  2. Step 2: Convert to fraction form
    676,713.25/933,852.09 = 401,256.50/x
  3. Step 3: Cross multiply
    676,713.25x = 933,852.09 × 401,256.50
  4. Step 4: Simplify right side
    676,713.25x = 374,714,220,982.39
  5. Step 5: Solve for x
    x = 374,714,220,982.39/676,713.25
  6. Step 6: Final answer
    x = 553,726.74

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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.