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Finding the Fourth Proportional to 530,603.56, 732,311.48 and 312,852.17

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Solution

The fourth proportional to 530,603.56, 732,311.48 and 312,852.17 is: 431,782.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,603.56 : 732,311.48 = 312,852.17 : x
  2. Step 2: Convert to fraction form
    530,603.56/732,311.48 = 312,852.17/x
  3. Step 3: Cross multiply
    530,603.56x = 732,311.48 × 312,852.17
  4. Step 4: Simplify right side
    530,603.56x = 229,105,238,246.82
  5. Step 5: Solve for x
    x = 229,105,238,246.82/530,603.56
  6. Step 6: Final answer
    x = 431,782.32

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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.