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Finding the Fourth Proportional to 464,009.20, 696,013.80 and 440,047.60

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Solution

The fourth proportional to 464,009.20, 696,013.80 and 440,047.60 is: 660,071.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,009.20 : 696,013.80 = 440,047.60 : x
  2. Step 2: Convert to fraction form
    464,009.20/696,013.80 = 440,047.60/x
  3. Step 3: Cross multiply
    464,009.20x = 696,013.80 × 440,047.60
  4. Step 4: Simplify right side
    464,009.20x = 306,279,202,256.88
  5. Step 5: Solve for x
    x = 306,279,202,256.88/464,009.20
  6. Step 6: Final answer
    x = 660,071.40

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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.