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Finding the Fourth Proportional to 325,630,386.70, 457,091,864.90 and 325,630,386.70

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Solution

The fourth proportional to 325,630,386.70, 457,091,864.90 and 325,630,386.70 is: 457,091,864.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,630,386.70 : 457,091,864.90 = 325,630,386.70 : x
  2. Step 2: Convert to fraction form
    325,630,386.70/457,091,864.90 = 325,630,386.70/x
  3. Step 3: Cross multiply
    325,630,386.70x = 457,091,864.90 × 325,630,386.70
  4. Step 4: Simplify right side
    325,630,386.70x = 148,843,000,724,811,136
  5. Step 5: Solve for x
    x = 148,843,000,724,811,136/325,630,386.70
  6. Step 6: Final answer
    x = 457,091,864.90

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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.