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Finding the Fourth Proportional to 346,331.20, 519,237.60 and 188,737.60

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Solution

The fourth proportional to 346,331.20, 519,237.60 and 188,737.60 is: 282,965.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,331.20 : 519,237.60 = 188,737.60 : x
  2. Step 2: Convert to fraction form
    346,331.20/519,237.60 = 188,737.60/x
  3. Step 3: Cross multiply
    346,331.20x = 519,237.60 × 188,737.60
  4. Step 4: Simplify right side
    346,331.20x = 97,999,658,453.76
  5. Step 5: Solve for x
    x = 97,999,658,453.76/346,331.20
  6. Step 6: Final answer
    x = 282,965.15

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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.