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Finding the Fourth Proportional to 719,737, 993,324.54 and 417,931

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Solution

The fourth proportional to 719,737, 993,324.54 and 417,931 is: 576,795.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,737 : 993,324.54 = 417,931 : x
  2. Step 2: Convert to fraction form
    719,737/993,324.54 = 417,931/x
  3. Step 3: Cross multiply
    719,737x = 993,324.54 × 417,931
  4. Step 4: Simplify right side
    719,737x = 415,141,118,326.74
  5. Step 5: Solve for x
    x = 415,141,118,326.74/719,737
  6. Step 6: Final answer
    x = 576,795.58

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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.