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Finding the Fourth Proportional to 623,970.84, 861,076.94 and 337,490.24

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Solution

The fourth proportional to 623,970.84, 861,076.94 and 337,490.24 is: 465,735.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,970.84 : 861,076.94 = 337,490.24 : x
  2. Step 2: Convert to fraction form
    623,970.84/861,076.94 = 337,490.24/x
  3. Step 3: Cross multiply
    623,970.84x = 861,076.94 × 337,490.24
  4. Step 4: Simplify right side
    623,970.84x = 290,605,066,135.48
  5. Step 5: Solve for x
    x = 290,605,066,135.48/623,970.84
  6. Step 6: Final answer
    x = 465,735.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.