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Finding the Fourth Proportional to 594,015.40, 891,023.10 and 278,504.20

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Solution

The fourth proportional to 594,015.40, 891,023.10 and 278,504.20 is: 417,756.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    594,015.40 : 891,023.10 = 278,504.20 : x
  2. Step 2: Convert to fraction form
    594,015.40/891,023.10 = 278,504.20/x
  3. Step 3: Cross multiply
    594,015.40x = 891,023.10 × 278,504.20
  4. Step 4: Simplify right side
    594,015.40x = 248,153,675,647.02
  5. Step 5: Solve for x
    x = 248,153,675,647.02/594,015.40
  6. Step 6: Final answer
    x = 417,756.30

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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.