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Finding the Fourth Proportional to 356,809.12, 535,670.36 and 306,529.83

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Solution

The fourth proportional to 356,809.12, 535,670.36 and 306,529.83 is: 460,187.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,809.12 : 535,670.36 = 306,529.83 : x
  2. Step 2: Convert to fraction form
    356,809.12/535,670.36 = 306,529.83/x
  3. Step 3: Cross multiply
    356,809.12x = 535,670.36 × 306,529.83
  4. Step 4: Simplify right side
    356,809.12x = 164,198,944,386.84
  5. Step 5: Solve for x
    x = 164,198,944,386.84/356,809.12
  6. Step 6: Final answer
    x = 460,187.07

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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.