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Finding the Fourth Proportional to 346,461.20, 519,886.20 and 146,747.60

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Solution

The fourth proportional to 346,461.20, 519,886.20 and 146,747.60 is: 220,203.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,461.20 : 519,886.20 = 146,747.60 : x
  2. Step 2: Convert to fraction form
    346,461.20/519,886.20 = 146,747.60/x
  3. Step 3: Cross multiply
    346,461.20x = 519,886.20 × 146,747.60
  4. Step 4: Simplify right side
    346,461.20x = 76,292,052,123.12
  5. Step 5: Solve for x
    x = 76,292,052,123.12/346,461.20
  6. Step 6: Final answer
    x = 220,203.74

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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.