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Finding the Fourth Proportional to 698,753.04, 964,313.40 and 392,925.69

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Solution

The fourth proportional to 698,753.04, 964,313.40 and 392,925.69 is: 542,256.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,753.04 : 964,313.40 = 392,925.69 : x
  2. Step 2: Convert to fraction form
    698,753.04/964,313.40 = 392,925.69/x
  3. Step 3: Cross multiply
    698,753.04x = 964,313.40 × 392,925.69
  4. Step 4: Simplify right side
    698,753.04x = 378,903,508,071.25
  5. Step 5: Solve for x
    x = 378,903,508,071.25/698,753.04
  6. Step 6: Final answer
    x = 542,256.69

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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.