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Finding the Fourth Proportional to 656,384.40, 984,576.60 and 554,907.60

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Solution

The fourth proportional to 656,384.40, 984,576.60 and 554,907.60 is: 832,361.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,384.40 : 984,576.60 = 554,907.60 : x
  2. Step 2: Convert to fraction form
    656,384.40/984,576.60 = 554,907.60/x
  3. Step 3: Cross multiply
    656,384.40x = 984,576.60 × 554,907.60
  4. Step 4: Simplify right side
    656,384.40x = 546,349,038,122.16
  5. Step 5: Solve for x
    x = 546,349,038,122.16/656,384.40
  6. Step 6: Final answer
    x = 832,361.40

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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.