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Finding the Fourth Proportional to 885,275,973.40, 1,328,764,265.70 and 449,069,200.60

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Solution

The fourth proportional to 885,275,973.40, 1,328,764,265.70 and 449,069,200.60 is: 674,035,130.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,275,973.40 : 1,328,764,265.70 = 449,069,200.60 : x
  2. Step 2: Convert to fraction form
    885,275,973.40/1,328,764,265.70 = 449,069,200.60/x
  3. Step 3: Cross multiply
    885,275,973.40x = 1,328,764,265.70 × 449,069,200.60
  4. Step 4: Simplify right side
    885,275,973.40x = 596,707,106,583,745,024
  5. Step 5: Solve for x
    x = 596,707,106,583,745,024/885,275,973.40
  6. Step 6: Final answer
    x = 674,035,130.87

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1.5x scale

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.