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Finding the Fourth Proportional to 562,409.61, 776,125.32 and 307,760.82

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Solution

The fourth proportional to 562,409.61, 776,125.32 and 307,760.82 is: 424,709.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,409.61 : 776,125.32 = 307,760.82 : x
  2. Step 2: Convert to fraction form
    562,409.61/776,125.32 = 307,760.82/x
  3. Step 3: Cross multiply
    562,409.61x = 776,125.32 × 307,760.82
  4. Step 4: Simplify right side
    562,409.61x = 238,860,964,905.96
  5. Step 5: Solve for x
    x = 238,860,964,905.96/562,409.61
  6. Step 6: Final answer
    x = 424,709.96

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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.