Home / 719,455.04-992,821.94-397,158.22

Finding the Fourth Proportional to 719,455.04, 992,821.94 and 397,158.22

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Solution

The fourth proportional to 719,455.04, 992,821.94 and 397,158.22 is: 548,063.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,455.04 : 992,821.94 = 397,158.22 : x
  2. Step 2: Convert to fraction form
    719,455.04/992,821.94 = 397,158.22/x
  3. Step 3: Cross multiply
    719,455.04x = 992,821.94 × 397,158.22
  4. Step 4: Simplify right side
    719,455.04x = 394,307,393,474.45
  5. Step 5: Solve for x
    x = 394,307,393,474.45/719,455.04
  6. Step 6: Final answer
    x = 548,063.98

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Double scale
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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.