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Finding the Fourth Proportional to 719,353.88, 992,702.88 and 397,063.94

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Solution

The fourth proportional to 719,353.88, 992,702.88 and 397,063.94 is: 547,945.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,353.88 : 992,702.88 = 397,063.94 : x
  2. Step 2: Convert to fraction form
    719,353.88/992,702.88 = 397,063.94/x
  3. Step 3: Cross multiply
    719,353.88x = 992,702.88 × 397,063.94
  4. Step 4: Simplify right side
    719,353.88x = 394,166,516,782.15
  5. Step 5: Solve for x
    x = 394,166,516,782.15/719,353.88
  6. Step 6: Final answer
    x = 547,945.22

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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.