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Finding the Fourth Proportional to 593,856.40, 890,784.60 and 520,128.40

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Solution

The fourth proportional to 593,856.40, 890,784.60 and 520,128.40 is: 780,192.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,856.40 : 890,784.60 = 520,128.40 : x
  2. Step 2: Convert to fraction form
    593,856.40/890,784.60 = 520,128.40/x
  3. Step 3: Cross multiply
    593,856.40x = 890,784.60 × 520,128.40
  4. Step 4: Simplify right side
    593,856.40x = 463,322,368,742.64
  5. Step 5: Solve for x
    x = 463,322,368,742.64/593,856.40
  6. Step 6: Final answer
    x = 780,192.60

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Half scale
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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.