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Finding the Fourth Proportional to 719,594, 993,054.12 and 397,304.72

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Solution

The fourth proportional to 719,594, 993,054.12 and 397,304.72 is: 548,288.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,594 : 993,054.12 = 397,304.72 : x
  2. Step 2: Convert to fraction form
    719,594/993,054.12 = 397,304.72/x
  3. Step 3: Cross multiply
    719,594x = 993,054.12 × 397,304.72
  4. Step 4: Simplify right side
    719,594x = 394,545,089,091.45
  5. Step 5: Solve for x
    x = 394,545,089,091.45/719,594
  6. Step 6: Final answer
    x = 548,288.46

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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.