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Finding the Fourth Proportional to 719,262.61, 992,543.58 and 447,322.84

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Solution

The fourth proportional to 719,262.61, 992,543.58 and 447,322.84 is: 617,281.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,262.61 : 992,543.58 = 447,322.84 : x
  2. Step 2: Convert to fraction form
    719,262.61/992,543.58 = 447,322.84/x
  3. Step 3: Cross multiply
    719,262.61x = 992,543.58 × 447,322.84
  4. Step 4: Simplify right side
    719,262.61x = 443,987,410,548.01
  5. Step 5: Solve for x
    x = 443,987,410,548.01/719,262.61
  6. Step 6: Final answer
    x = 617,281.37

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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.