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Finding the Fourth Proportional to 434,052.56, 651,320.76 and 234,368.72

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Solution

The fourth proportional to 434,052.56, 651,320.76 and 234,368.72 is: 351,683.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,052.56 : 651,320.76 = 234,368.72 : x
  2. Step 2: Convert to fraction form
    434,052.56/651,320.76 = 234,368.72/x
  3. Step 3: Cross multiply
    434,052.56x = 651,320.76 × 234,368.72
  4. Step 4: Simplify right side
    434,052.56x = 152,649,212,830.63
  5. Step 5: Solve for x
    x = 152,649,212,830.63/434,052.56
  6. Step 6: Final answer
    x = 351,683.71

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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.