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Finding the Fourth Proportional to 325,630,809.20, 457,092,456.40 and 325,630,809.20

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Solution

The fourth proportional to 325,630,809.20, 457,092,456.40 and 325,630,809.20 is: 457,092,456.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,630,809.20 : 457,092,456.40 = 325,630,809.20 : x
  2. Step 2: Convert to fraction form
    325,630,809.20/457,092,456.40 = 325,630,809.20/x
  3. Step 3: Cross multiply
    325,630,809.20x = 457,092,456.40 × 325,630,809.20
  4. Step 4: Simplify right side
    325,630,809.20x = 148,843,386,456,747,712
  5. Step 5: Solve for x
    x = 148,843,386,456,747,712/325,630,809.20
  6. Step 6: Final answer
    x = 457,092,456.40

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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.