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Finding the Fourth Proportional to 611,717.40, 917,576.10 and 585,801.45

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Solution

The fourth proportional to 611,717.40, 917,576.10 and 585,801.45 is: 878,702.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,717.40 : 917,576.10 = 585,801.45 : x
  2. Step 2: Convert to fraction form
    611,717.40/917,576.10 = 585,801.45/x
  3. Step 3: Cross multiply
    611,717.40x = 917,576.10 × 585,801.45
  4. Step 4: Simplify right side
    611,717.40x = 537,517,409,865.35
  5. Step 5: Solve for x
    x = 537,517,409,865.35/611,717.40
  6. Step 6: Final answer
    x = 878,702.18

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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.