Home / 719,629.18-993,069.32-397,332.34

Finding the Fourth Proportional to 719,629.18, 993,069.32 and 397,332.34

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Solution

The fourth proportional to 719,629.18, 993,069.32 and 397,332.34 is: 548,308.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,629.18 : 993,069.32 = 397,332.34 : x
  2. Step 2: Convert to fraction form
    719,629.18/993,069.32 = 397,332.34/x
  3. Step 3: Cross multiply
    719,629.18x = 993,069.32 × 397,332.34
  4. Step 4: Simplify right side
    719,629.18x = 394,578,552,228.47
  5. Step 5: Solve for x
    x = 394,578,552,228.47/719,629.18
  6. Step 6: Final answer
    x = 548,308.16

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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.