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Finding the Fourth Proportional to 902,978.80, 1,354,693.70 and 637,258.30

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Solution

The fourth proportional to 902,978.80, 1,354,693.70 and 637,258.30 is: 956,046.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,978.80 : 1,354,693.70 = 637,258.30 : x
  2. Step 2: Convert to fraction form
    902,978.80/1,354,693.70 = 637,258.30/x
  3. Step 3: Cross multiply
    902,978.80x = 1,354,693.70 × 637,258.30
  4. Step 4: Simplify right side
    902,978.80x = 863,289,804,282.71
  5. Step 5: Solve for x
    x = 863,289,804,282.71/902,978.80
  6. Step 6: Final answer
    x = 956,046.59

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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.