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Finding the Fourth Proportional to 567,417.66, 783,036.18 and 312,773.10

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Solution

The fourth proportional to 567,417.66, 783,036.18 and 312,773.10 is: 431,626.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,417.66 : 783,036.18 = 312,773.10 : x
  2. Step 2: Convert to fraction form
    567,417.66/783,036.18 = 312,773.10/x
  3. Step 3: Cross multiply
    567,417.66x = 783,036.18 × 312,773.10
  4. Step 4: Simplify right side
    567,417.66x = 244,912,653,430.76
  5. Step 5: Solve for x
    x = 244,912,653,430.76/567,417.66
  6. Step 6: Final answer
    x = 431,626.77

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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.