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Finding the Fourth Proportional to 346,698.60, 520,098.30 and 147,018.60

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Solution

The fourth proportional to 346,698.60, 520,098.30 and 147,018.60 is: 220,549.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,698.60 : 520,098.30 = 147,018.60 : x
  2. Step 2: Convert to fraction form
    346,698.60/520,098.30 = 147,018.60/x
  3. Step 3: Cross multiply
    346,698.60x = 520,098.30 × 147,018.60
  4. Step 4: Simplify right side
    346,698.60x = 76,464,123,928.38
  5. Step 5: Solve for x
    x = 76,464,123,928.38/346,698.60
  6. Step 6: Final answer
    x = 220,549.27

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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.