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Finding the Fourth Proportional to 616,368.90, 922,998.15 and 491,952.90

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Solution

The fourth proportional to 616,368.90, 922,998.15 and 491,952.90 is: 736,688.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,368.90 : 922,998.15 = 491,952.90 : x
  2. Step 2: Convert to fraction form
    616,368.90/922,998.15 = 491,952.90/x
  3. Step 3: Cross multiply
    616,368.90x = 922,998.15 × 491,952.90
  4. Step 4: Simplify right side
    616,368.90x = 454,071,616,587.14
  5. Step 5: Solve for x
    x = 454,071,616,587.14/616,368.90
  6. Step 6: Final answer
    x = 736,688.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.