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Finding the Fourth Proportional to 607,501.20, 911,033.10 and 307,882.20

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Solution

The fourth proportional to 607,501.20, 911,033.10 and 307,882.20 is: 461,712.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,501.20 : 911,033.10 = 307,882.20 : x
  2. Step 2: Convert to fraction form
    607,501.20/911,033.10 = 307,882.20/x
  3. Step 3: Cross multiply
    607,501.20x = 911,033.10 × 307,882.20
  4. Step 4: Simplify right side
    607,501.20x = 280,490,875,100.82
  5. Step 5: Solve for x
    x = 280,490,875,100.82/607,501.20
  6. Step 6: Final answer
    x = 461,712.46

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1.5x scale

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.