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Finding the Fourth Proportional to 593,491.40, 890,237.10 and 278,563.40

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Solution

The fourth proportional to 593,491.40, 890,237.10 and 278,563.40 is: 417,845.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,491.40 : 890,237.10 = 278,563.40 : x
  2. Step 2: Convert to fraction form
    593,491.40/890,237.10 = 278,563.40/x
  3. Step 3: Cross multiply
    593,491.40x = 890,237.10 × 278,563.40
  4. Step 4: Simplify right side
    593,491.40x = 247,987,473,382.14
  5. Step 5: Solve for x
    x = 247,987,473,382.14/593,491.40
  6. Step 6: Final answer
    x = 417,845.10

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Half scale
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Double scale
Find fourth proportional to 593,492.40, 890,238.60 and 278,564.40
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.