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Finding the Fourth Proportional to 4,572,223.20, 6,392,714.40 and 4,572,223.20

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Solution

The fourth proportional to 4,572,223.20, 6,392,714.40 and 4,572,223.20 is: 6,392,714.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,572,223.20 : 6,392,714.40 = 4,572,223.20 : x
  2. Step 2: Convert to fraction form
    4,572,223.20/6,392,714.40 = 4,572,223.20/x
  3. Step 3: Cross multiply
    4,572,223.20x = 6,392,714.40 × 4,572,223.20
  4. Step 4: Simplify right side
    4,572,223.20x = 29,228,917,090,654.08
  5. Step 5: Solve for x
    x = 29,228,917,090,654.08/4,572,223.20
  6. Step 6: Final answer
    x = 6,392,714.40

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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 (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.