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Finding the Fourth Proportional to 885,735,281.70, 1,328,602,922.55 and 880,633,448.10

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Solution

The fourth proportional to 885,735,281.70, 1,328,602,922.55 and 880,633,448.10 is: 1,320,950,172.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,735,281.70 : 1,328,602,922.55 = 880,633,448.10 : x
  2. Step 2: Convert to fraction form
    885,735,281.70/1,328,602,922.55 = 880,633,448.10/x
  3. Step 3: Cross multiply
    885,735,281.70x = 1,328,602,922.55 × 880,633,448.10
  4. Step 4: Simplify right side
    885,735,281.70x = 1,170,012,172,840,943,616
  5. Step 5: Solve for x
    x = 1,170,012,172,840,943,616/885,735,281.70
  6. Step 6: Final answer
    x = 1,320,950,172.15

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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.