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Finding the Fourth Proportional to 887,836,802.90, 1,245,012,257.50 and 887,836,802.90

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Solution

The fourth proportional to 887,836,802.90, 1,245,012,257.50 and 887,836,802.90 is: 1,245,012,257.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,836,802.90 : 1,245,012,257.50 = 887,836,802.90 : x
  2. Step 2: Convert to fraction form
    887,836,802.90/1,245,012,257.50 = 887,836,802.90/x
  3. Step 3: Cross multiply
    887,836,802.90x = 1,245,012,257.50 × 887,836,802.90
  4. Step 4: Simplify right side
    887,836,802.90x = 1,105,367,702,270,111,488
  5. Step 5: Solve for x
    x = 1,105,367,702,270,111,488/887,836,802.90
  6. Step 6: Final answer
    x = 1,245,012,257.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.