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Finding the Fourth Proportional to 610,698.84, 916,111.20 and 211,339.02

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Solution

The fourth proportional to 610,698.84, 916,111.20 and 211,339.02 is: 317,030.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,698.84 : 916,111.20 = 211,339.02 : x
  2. Step 2: Convert to fraction form
    610,698.84/916,111.20 = 211,339.02/x
  3. Step 3: Cross multiply
    610,698.84x = 916,111.20 × 211,339.02
  4. Step 4: Simplify right side
    610,698.84x = 193,610,043,219.02
  5. Step 5: Solve for x
    x = 193,610,043,219.02/610,698.84
  6. Step 6: Final answer
    x = 317,030.31

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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.