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Finding the Fourth Proportional to 348,448.90, 480,801.19 and 205,237.45

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Solution

The fourth proportional to 348,448.90, 480,801.19 and 205,237.45 is: 283,193.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,448.90 : 480,801.19 = 205,237.45 : x
  2. Step 2: Convert to fraction form
    348,448.90/480,801.19 = 205,237.45/x
  3. Step 3: Cross multiply
    348,448.90x = 480,801.19 × 205,237.45
  4. Step 4: Simplify right side
    348,448.90x = 98,678,410,881.47
  5. Step 5: Solve for x
    x = 98,678,410,881.47/348,448.90
  6. Step 6: Final answer
    x = 283,193.35

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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.