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Finding the Fourth Proportional to 719,295.02, 992,622.15 and 397,005.11

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Solution

The fourth proportional to 719,295.02, 992,622.15 and 397,005.11 is: 547,864.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,295.02 : 992,622.15 = 397,005.11 : x
  2. Step 2: Convert to fraction form
    719,295.02/992,622.15 = 397,005.11/x
  3. Step 3: Cross multiply
    719,295.02x = 992,622.15 × 397,005.11
  4. Step 4: Simplify right side
    719,295.02x = 394,076,065,849.19
  5. Step 5: Solve for x
    x = 394,076,065,849.19/719,295.02
  6. Step 6: Final answer
    x = 547,864.30

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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.