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Finding the Fourth Proportional to 562,936.36, 776,854.66 and 308,289.32

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Solution

The fourth proportional to 562,936.36, 776,854.66 and 308,289.32 is: 425,440.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,936.36 : 776,854.66 = 308,289.32 : x
  2. Step 2: Convert to fraction form
    562,936.36/776,854.66 = 308,289.32/x
  3. Step 3: Cross multiply
    562,936.36x = 776,854.66 × 308,289.32
  4. Step 4: Simplify right side
    562,936.36x = 239,495,994,870.23
  5. Step 5: Solve for x
    x = 239,495,994,870.23/562,936.36
  6. Step 6: Final answer
    x = 425,440.62

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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.