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Finding the Fourth Proportional to 562,562.20, 776,334.54 and 307,911.16

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Solution

The fourth proportional to 562,562.20, 776,334.54 and 307,911.16 is: 424,916.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,562.20 : 776,334.54 = 307,911.16 : x
  2. Step 2: Convert to fraction form
    562,562.20/776,334.54 = 307,911.16/x
  3. Step 3: Cross multiply
    562,562.20x = 776,334.54 × 307,911.16
  4. Step 4: Simplify right side
    562,562.20x = 239,042,068,759.47
  5. Step 5: Solve for x
    x = 239,042,068,759.47/562,562.20
  6. Step 6: Final answer
    x = 424,916.69

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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.