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Finding the Fourth Proportional to 1,292,510, 1,783,704.84 and 808,920.56

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Solution

The fourth proportional to 1,292,510, 1,783,704.84 and 808,920.56 is: 1,116,336.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,510 : 1,783,704.84 = 808,920.56 : x
  2. Step 2: Convert to fraction form
    1,292,510/1,783,704.84 = 808,920.56/x
  3. Step 3: Cross multiply
    1,292,510x = 1,783,704.84 × 808,920.56
  4. Step 4: Simplify right side
    1,292,510x = 1,442,875,518,047.51
  5. Step 5: Solve for x
    x = 1,442,875,518,047.51/1,292,510
  6. Step 6: Final answer
    x = 1,116,336.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.