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Finding the Fourth Proportional to 581,745,003.40, 872,617,505.10 and 451,648,246.60

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Solution

The fourth proportional to 581,745,003.40, 872,617,505.10 and 451,648,246.60 is: 677,472,369.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,745,003.40 : 872,617,505.10 = 451,648,246.60 : x
  2. Step 2: Convert to fraction form
    581,745,003.40/872,617,505.10 = 451,648,246.60/x
  3. Step 3: Cross multiply
    581,745,003.40x = 872,617,505.10 × 451,648,246.60
  4. Step 4: Simplify right side
    581,745,003.40x = 394,116,166,130,881,600
  5. Step 5: Solve for x
    x = 394,116,166,130,881,600/581,745,003.40
  6. Step 6: Final answer
    x = 677,472,369.90

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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.