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Finding the Fourth Proportional to 607,955.01, 911,645.91 and 355,308.18

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Solution

The fourth proportional to 607,955.01, 911,645.91 and 355,308.18 is: 532,794.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,955.01 : 911,645.91 = 355,308.18 : x
  2. Step 2: Convert to fraction form
    607,955.01/911,645.91 = 355,308.18/x
  3. Step 3: Cross multiply
    607,955.01x = 911,645.91 × 355,308.18
  4. Step 4: Simplify right side
    607,955.01x = 323,915,249,086.54
  5. Step 5: Solve for x
    x = 323,915,249,086.54/607,955.01
  6. Step 6: Final answer
    x = 532,794.77

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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.