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Finding the Fourth Proportional to 708,663.03, 977,954.11 and 386,373.04

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Solution

The fourth proportional to 708,663.03, 977,954.11 and 386,373.04 is: 533,194.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,663.03 : 977,954.11 = 386,373.04 : x
  2. Step 2: Convert to fraction form
    708,663.03/977,954.11 = 386,373.04/x
  3. Step 3: Cross multiply
    708,663.03x = 977,954.11 × 386,373.04
  4. Step 4: Simplify right side
    708,663.03x = 377,855,099,050.38
  5. Step 5: Solve for x
    x = 377,855,099,050.38/708,663.03
  6. Step 6: Final answer
    x = 533,194.32

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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.