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Finding the Fourth Proportional to 524,389.48, 786,601.13 and 145,313.93

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Solution

The fourth proportional to 524,389.48, 786,601.13 and 145,313.93 is: 217,975.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,389.48 : 786,601.13 = 145,313.93 : x
  2. Step 2: Convert to fraction form
    524,389.48/786,601.13 = 145,313.93/x
  3. Step 3: Cross multiply
    524,389.48x = 786,601.13 × 145,313.93
  4. Step 4: Simplify right side
    524,389.48x = 114,304,102,782.67
  5. Step 5: Solve for x
    x = 114,304,102,782.67/524,389.48
  6. Step 6: Final answer
    x = 217,975.58

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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.