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Finding the Fourth Proportional to 435,545.76, 601,148.16 and 313,364.64

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Solution

The fourth proportional to 435,545.76, 601,148.16 and 313,364.64 is: 432,511.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,545.76 : 601,148.16 = 313,364.64 : x
  2. Step 2: Convert to fraction form
    435,545.76/601,148.16 = 313,364.64/x
  3. Step 3: Cross multiply
    435,545.76x = 601,148.16 × 313,364.64
  4. Step 4: Simplify right side
    435,545.76x = 188,378,576,745.06
  5. Step 5: Solve for x
    x = 188,378,576,745.06/435,545.76
  6. Step 6: Final answer
    x = 432,511.56

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1.5x scale

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.