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Finding the Fourth Proportional to 661,858.63, 990,780.46 and 598,705.36

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Solution

The fourth proportional to 661,858.63, 990,780.46 and 598,705.36 is: 896,242.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,858.63 : 990,780.46 = 598,705.36 : x
  2. Step 2: Convert to fraction form
    661,858.63/990,780.46 = 598,705.36/x
  3. Step 3: Cross multiply
    661,858.63x = 990,780.46 × 598,705.36
  4. Step 4: Simplify right side
    661,858.63x = 593,185,571,985.27
  5. Step 5: Solve for x
    x = 593,185,571,985.27/661,858.63
  6. Step 6: Final answer
    x = 896,242.11

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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.