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Finding the Fourth Proportional to 1,773,812.28, 2,447,863.28 and 1,009,865.80

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Solution

The fourth proportional to 1,773,812.28, 2,447,863.28 and 1,009,865.80 is: 1,393,616.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,773,812.28 : 2,447,863.28 = 1,009,865.80 : x
  2. Step 2: Convert to fraction form
    1,773,812.28/2,447,863.28 = 1,009,865.80/x
  3. Step 3: Cross multiply
    1,773,812.28x = 2,447,863.28 × 1,009,865.80
  4. Step 4: Simplify right side
    1,773,812.28x = 2,472,013,409,547.82
  5. Step 5: Solve for x
    x = 2,472,013,409,547.82/1,773,812.28
  6. Step 6: Final answer
    x = 1,393,616.13

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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.