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Finding the Fourth Proportional to 519,945.84, 779,946.46 and 164,987.64

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Solution

The fourth proportional to 519,945.84, 779,946.46 and 164,987.64 is: 247,490.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,945.84 : 779,946.46 = 164,987.64 : x
  2. Step 2: Convert to fraction form
    519,945.84/779,946.46 = 164,987.64/x
  3. Step 3: Cross multiply
    519,945.84x = 779,946.46 × 164,987.64
  4. Step 4: Simplify right side
    519,945.84x = 128,681,525,761.75
  5. Step 5: Solve for x
    x = 128,681,525,761.75/519,945.84
  6. Step 6: Final answer
    x = 247,490.25

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1.5x scale

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.