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Finding the Fourth Proportional to 714,509.06, 985,968.33 and 392,167.94

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Solution

The fourth proportional to 714,509.06, 985,968.33 and 392,167.94 is: 541,162.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,509.06 : 985,968.33 = 392,167.94 : x
  2. Step 2: Convert to fraction form
    714,509.06/985,968.33 = 392,167.94/x
  3. Step 3: Cross multiply
    714,509.06x = 985,968.33 × 392,167.94
  4. Step 4: Simplify right side
    714,509.06x = 386,665,168,881.34
  5. Step 5: Solve for x
    x = 386,665,168,881.34/714,509.06
  6. Step 6: Final answer
    x = 541,162.02

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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.