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Finding the Fourth Proportional to 617,697.90, 926,706.47 and 361,746.50

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Solution

The fourth proportional to 617,697.90, 926,706.47 and 361,746.50 is: 542,713.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,697.90 : 926,706.47 = 361,746.50 : x
  2. Step 2: Convert to fraction form
    617,697.90/926,706.47 = 361,746.50/x
  3. Step 3: Cross multiply
    617,697.90x = 926,706.47 × 361,746.50
  4. Step 4: Simplify right side
    617,697.90x = 335,232,815,607.59
  5. Step 5: Solve for x
    x = 335,232,815,607.59/617,697.90
  6. Step 6: Final answer
    x = 542,713.22

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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.