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Finding the Fourth Proportional to 562,571.26, 776,355.64 and 307,916.98

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Solution

The fourth proportional to 562,571.26, 776,355.64 and 307,916.98 is: 424,929.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,571.26 : 776,355.64 = 307,916.98 : x
  2. Step 2: Convert to fraction form
    562,571.26/776,355.64 = 307,916.98/x
  3. Step 3: Cross multiply
    562,571.26x = 776,355.64 × 307,916.98
  4. Step 4: Simplify right side
    562,571.26x = 239,053,084,074.77
  5. Step 5: Solve for x
    x = 239,053,084,074.77/562,571.26
  6. Step 6: Final answer
    x = 424,929.43

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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.