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Finding the Fourth Proportional to 492,704.40, 739,056.60 and 488,038.80

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Solution

The fourth proportional to 492,704.40, 739,056.60 and 488,038.80 is: 732,058.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,704.40 : 739,056.60 = 488,038.80 : x
  2. Step 2: Convert to fraction form
    492,704.40/739,056.60 = 488,038.80/x
  3. Step 3: Cross multiply
    492,704.40x = 739,056.60 × 488,038.80
  4. Step 4: Simplify right side
    492,704.40x = 360,688,296,196.08
  5. Step 5: Solve for x
    x = 360,688,296,196.08/492,704.40
  6. Step 6: Final answer
    x = 732,058.20

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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.