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Finding the Fourth Proportional to 1,018,734.03, 1,405,785 and 559,838.73

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Solution

The fourth proportional to 1,018,734.03, 1,405,785 and 559,838.73 is: 772,540.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,734.03 : 1,405,785 = 559,838.73 : x
  2. Step 2: Convert to fraction form
    1,018,734.03/1,405,785 = 559,838.73/x
  3. Step 3: Cross multiply
    1,018,734.03x = 1,405,785 × 559,838.73
  4. Step 4: Simplify right side
    1,018,734.03x = 787,012,889,053.05
  5. Step 5: Solve for x
    x = 787,012,889,053.05/1,018,734.03
  6. Step 6: Final answer
    x = 772,540.10

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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.