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Finding the Fourth Proportional to 666,994.14, 920,543.67 and 409,025.34

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Solution

The fourth proportional to 666,994.14, 920,543.67 and 409,025.34 is: 564,511.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,994.14 : 920,543.67 = 409,025.34 : x
  2. Step 2: Convert to fraction form
    666,994.14/920,543.67 = 409,025.34/x
  3. Step 3: Cross multiply
    666,994.14x = 920,543.67 × 409,025.34
  4. Step 4: Simplify right side
    666,994.14x = 376,525,687,606.60
  5. Step 5: Solve for x
    x = 376,525,687,606.60/666,994.14
  6. Step 6: Final answer
    x = 564,511.24

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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.