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Finding the Fourth Proportional to 462,215.76, 637,887.32 and 258,267.21

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Solution

The fourth proportional to 462,215.76, 637,887.32 and 258,267.21 is: 356,425.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,215.76 : 637,887.32 = 258,267.21 : x
  2. Step 2: Convert to fraction form
    462,215.76/637,887.32 = 258,267.21/x
  3. Step 3: Cross multiply
    462,215.76x = 637,887.32 × 258,267.21
  4. Step 4: Simplify right side
    462,215.76x = 164,745,378,430.78
  5. Step 5: Solve for x
    x = 164,745,378,430.78/462,215.76
  6. Step 6: Final answer
    x = 356,425.27

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1.5x scale

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.