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Finding the Fourth Proportional to 1,293,497.40, 1,808,534.40 and 1,293,497.40

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Solution

The fourth proportional to 1,293,497.40, 1,808,534.40 and 1,293,497.40 is: 1,808,534.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,497.40 : 1,808,534.40 = 1,293,497.40 : x
  2. Step 2: Convert to fraction form
    1,293,497.40/1,808,534.40 = 1,293,497.40/x
  3. Step 3: Cross multiply
    1,293,497.40x = 1,808,534.40 × 1,293,497.40
  4. Step 4: Simplify right side
    1,293,497.40x = 2,339,334,544,210.56
  5. Step 5: Solve for x
    x = 2,339,334,544,210.56/1,293,497.40
  6. Step 6: Final answer
    x = 1,808,534.40

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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.