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Finding the Fourth Proportional to 609,915.36, 841,604.40 and 341,643.36

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Solution

The fourth proportional to 609,915.36, 841,604.40 and 341,643.36 is: 471,423.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,915.36 : 841,604.40 = 341,643.36 : x
  2. Step 2: Convert to fraction form
    609,915.36/841,604.40 = 341,643.36/x
  3. Step 3: Cross multiply
    609,915.36x = 841,604.40 × 341,643.36
  4. Step 4: Simplify right side
    609,915.36x = 287,528,555,006.78
  5. Step 5: Solve for x
    x = 287,528,555,006.78/609,915.36
  6. Step 6: Final answer
    x = 471,423.70

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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.