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Finding the Fourth Proportional to 719,827.88, 993,362.48 and 418,041.32

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Solution

The fourth proportional to 719,827.88, 993,362.48 and 418,041.32 is: 576,897.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,827.88 : 993,362.48 = 418,041.32 : x
  2. Step 2: Convert to fraction form
    719,827.88/993,362.48 = 418,041.32/x
  3. Step 3: Cross multiply
    719,827.88x = 993,362.48 × 418,041.32
  4. Step 4: Simplify right side
    719,827.88x = 415,266,562,377.67
  5. Step 5: Solve for x
    x = 415,266,562,377.67/719,827.88
  6. Step 6: Final answer
    x = 576,897.02

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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.