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Finding the Fourth Proportional to 619,798,277.40, 929,697,416.10 and 619,798,277.40

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Solution

The fourth proportional to 619,798,277.40, 929,697,416.10 and 619,798,277.40 is: 929,697,416.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,798,277.40 : 929,697,416.10 = 619,798,277.40 : x
  2. Step 2: Convert to fraction form
    619,798,277.40/929,697,416.10 = 619,798,277.40/x
  3. Step 3: Cross multiply
    619,798,277.40x = 929,697,416.10 × 619,798,277.40
  4. Step 4: Simplify right side
    619,798,277.40x = 576,224,857,002,011,008
  5. Step 5: Solve for x
    x = 576,224,857,002,011,008/619,798,277.40
  6. Step 6: Final answer
    x = 929,697,416.10

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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.