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Finding the Fourth Proportional to 473,428.76, 653,321.58 and 258,569.67

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Solution

The fourth proportional to 473,428.76, 653,321.58 and 258,569.67 is: 356,820.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,428.76 : 653,321.58 = 258,569.67 : x
  2. Step 2: Convert to fraction form
    473,428.76/653,321.58 = 258,569.67/x
  3. Step 3: Cross multiply
    473,428.76x = 653,321.58 × 258,569.67
  4. Step 4: Simplify right side
    473,428.76x = 168,929,145,344.48
  5. Step 5: Solve for x
    x = 168,929,145,344.48/473,428.76
  6. Step 6: Final answer
    x = 356,820.63

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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.