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Finding the Fourth Proportional to 346,473.50, 519,710.25 and 83,817.50

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Solution

The fourth proportional to 346,473.50, 519,710.25 and 83,817.50 is: 125,726.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,473.50 : 519,710.25 = 83,817.50 : x
  2. Step 2: Convert to fraction form
    346,473.50/519,710.25 = 83,817.50/x
  3. Step 3: Cross multiply
    346,473.50x = 519,710.25 × 83,817.50
  4. Step 4: Simplify right side
    346,473.50x = 43,560,813,879.38
  5. Step 5: Solve for x
    x = 43,560,813,879.38/346,473.50
  6. Step 6: Final answer
    x = 125,726.25

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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.