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Finding the Fourth Proportional to 562,571.50, 776,355.96 and 307,917.22

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Solution

The fourth proportional to 562,571.50, 776,355.96 and 307,917.22 is: 424,929.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,571.50 : 776,355.96 = 307,917.22 : x
  2. Step 2: Convert to fraction form
    562,571.50/776,355.96 = 307,917.22/x
  3. Step 3: Cross multiply
    562,571.50x = 776,355.96 × 307,917.22
  4. Step 4: Simplify right side
    562,571.50x = 239,053,368,933.63
  5. Step 5: Solve for x
    x = 239,053,368,933.63/562,571.50
  6. Step 6: Final answer
    x = 424,929.75

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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.