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Finding the Fourth Proportional to 346,693.60, 520,090.80 and 147,013.60

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Solution

The fourth proportional to 346,693.60, 520,090.80 and 147,013.60 is: 220,541.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,693.60 : 520,090.80 = 147,013.60 : x
  2. Step 2: Convert to fraction form
    346,693.60/520,090.80 = 147,013.60/x
  3. Step 3: Cross multiply
    346,693.60x = 520,090.80 × 147,013.60
  4. Step 4: Simplify right side
    346,693.60x = 76,460,420,834.88
  5. Step 5: Solve for x
    x = 76,460,420,834.88/346,693.60
  6. Step 6: Final answer
    x = 220,541.77

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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.