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Finding the Fourth Proportional to 593,410.72, 890,116.08 and 144,128.80

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Solution

The fourth proportional to 593,410.72, 890,116.08 and 144,128.80 is: 216,193.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,410.72 : 890,116.08 = 144,128.80 : x
  2. Step 2: Convert to fraction form
    593,410.72/890,116.08 = 144,128.80/x
  3. Step 3: Cross multiply
    593,410.72x = 890,116.08 × 144,128.80
  4. Step 4: Simplify right side
    593,410.72x = 128,291,362,471.10
  5. Step 5: Solve for x
    x = 128,291,362,471.10/593,410.72
  6. Step 6: Final answer
    x = 216,193.20

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Double scale
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Similar ratio
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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.