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Finding the Fourth Proportional to 719,570.34, 993,008.61 and 397,281.06

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Solution

The fourth proportional to 719,570.34, 993,008.61 and 397,281.06 is: 548,248.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,570.34 : 993,008.61 = 397,281.06 : x
  2. Step 2: Convert to fraction form
    719,570.34/993,008.61 = 397,281.06/x
  3. Step 3: Cross multiply
    719,570.34x = 993,008.61 × 397,281.06
  4. Step 4: Simplify right side
    719,570.34x = 394,503,513,169.93
  5. Step 5: Solve for x
    x = 394,503,513,169.93/719,570.34
  6. Step 6: Final answer
    x = 548,248.71

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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.