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Finding the Fourth Proportional to 624,646,034.64, 862,011,607.68 and 346,205,534.40

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Solution

The fourth proportional to 624,646,034.64, 862,011,607.68 and 346,205,534.40 is: 477,763,681.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,646,034.64 : 862,011,607.68 = 346,205,534.40 : x
  2. Step 2: Convert to fraction form
    624,646,034.64/862,011,607.68 = 346,205,534.40/x
  3. Step 3: Cross multiply
    624,646,034.64x = 862,011,607.68 × 346,205,534.40
  4. Step 4: Simplify right side
    624,646,034.64x = 298,433,189,295,857,536
  5. Step 5: Solve for x
    x = 298,433,189,295,857,536/624,646,034.64
  6. Step 6: Final answer
    x = 477,763,681.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.