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Finding the Fourth Proportional to 910,746.90, 1,276,911.90 and 910,746.90

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Solution

The fourth proportional to 910,746.90, 1,276,911.90 and 910,746.90 is: 1,276,911.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,746.90 : 1,276,911.90 = 910,746.90 : x
  2. Step 2: Convert to fraction form
    910,746.90/1,276,911.90 = 910,746.90/x
  3. Step 3: Cross multiply
    910,746.90x = 1,276,911.90 × 910,746.90
  4. Step 4: Simplify right side
    910,746.90x = 1,162,943,554,498.11
  5. Step 5: Solve for x
    x = 1,162,943,554,498.11/910,746.90
  6. Step 6: Final answer
    x = 1,276,911.90

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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.