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Finding the Fourth Proportional to 702,410.40, 1,052,060.40 and 577,994.40

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Solution

The fourth proportional to 702,410.40, 1,052,060.40 and 577,994.40 is: 865,711.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,410.40 : 1,052,060.40 = 577,994.40 : x
  2. Step 2: Convert to fraction form
    702,410.40/1,052,060.40 = 577,994.40/x
  3. Step 3: Cross multiply
    702,410.40x = 1,052,060.40 × 577,994.40
  4. Step 4: Simplify right side
    702,410.40x = 608,085,019,661.76
  5. Step 5: Solve for x
    x = 608,085,019,661.76/702,410.40
  6. Step 6: Final answer
    x = 865,711.87

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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.