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Finding the Fourth Proportional to 606,963.53, 837,671.13 and 521,206.40

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Solution

The fourth proportional to 606,963.53, 837,671.13 and 521,206.40 is: 719,317.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,963.53 : 837,671.13 = 521,206.40 : x
  2. Step 2: Convert to fraction form
    606,963.53/837,671.13 = 521,206.40/x
  3. Step 3: Cross multiply
    606,963.53x = 837,671.13 × 521,206.40
  4. Step 4: Simplify right side
    606,963.53x = 436,599,547,955.26
  5. Step 5: Solve for x
    x = 436,599,547,955.26/606,963.53
  6. Step 6: Final answer
    x = 719,317.59

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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.