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Finding the Fourth Proportional to 907,838, 1,361,634.40 and 375,285.16

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Solution

The fourth proportional to 907,838, 1,361,634.40 and 375,285.16 is: 562,877.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,838 : 1,361,634.40 = 375,285.16 : x
  2. Step 2: Convert to fraction form
    907,838/1,361,634.40 = 375,285.16/x
  3. Step 3: Cross multiply
    907,838x = 1,361,634.40 × 375,285.16
  4. Step 4: Simplify right side
    907,838x = 511,001,183,665.50
  5. Step 5: Solve for x
    x = 511,001,183,665.50/907,838
  6. Step 6: Final answer
    x = 562,877.06

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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.