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Finding the Fourth Proportional to 314,421,808.30, 471,632,712.45 and 314,421,808.30

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Solution

The fourth proportional to 314,421,808.30, 471,632,712.45 and 314,421,808.30 is: 471,632,712.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,421,808.30 : 471,632,712.45 = 314,421,808.30 : x
  2. Step 2: Convert to fraction form
    314,421,808.30/471,632,712.45 = 314,421,808.30/x
  3. Step 3: Cross multiply
    314,421,808.30x = 471,632,712.45 × 314,421,808.30
  4. Step 4: Simplify right side
    314,421,808.30x = 148,291,610,301,962,912
  5. Step 5: Solve for x
    x = 148,291,610,301,962,912/314,421,808.30
  6. Step 6: Final answer
    x = 471,632,712.45

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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.