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Finding the Fourth Proportional to 650,712,491.64, 897,979,975.08 and 353,352,077.64

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Solution

The fourth proportional to 650,712,491.64, 897,979,975.08 and 353,352,077.64 is: 487,624,095.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,712,491.64 : 897,979,975.08 = 353,352,077.64 : x
  2. Step 2: Convert to fraction form
    650,712,491.64/897,979,975.08 = 353,352,077.64/x
  3. Step 3: Cross multiply
    650,712,491.64x = 897,979,975.08 × 353,352,077.64
  4. Step 4: Simplify right side
    650,712,491.64x = 317,303,089,873,633,408
  5. Step 5: Solve for x
    x = 317,303,089,873,633,408/650,712,491.64
  6. Step 6: Final answer
    x = 487,624,095.05

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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.