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Finding the Fourth Proportional to 885,736,019.20, 1,328,604,028.80 and 303,276,683.20

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Solution

The fourth proportional to 885,736,019.20, 1,328,604,028.80 and 303,276,683.20 is: 454,915,024.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,736,019.20 : 1,328,604,028.80 = 303,276,683.20 : x
  2. Step 2: Convert to fraction form
    885,736,019.20/1,328,604,028.80 = 303,276,683.20/x
  3. Step 3: Cross multiply
    885,736,019.20x = 1,328,604,028.80 × 303,276,683.20
  4. Step 4: Simplify right side
    885,736,019.20x = 402,934,623,140,621,248
  5. Step 5: Solve for x
    x = 402,934,623,140,621,248/885,736,019.20
  6. Step 6: Final answer
    x = 454,915,024.80

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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.