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Finding the Fourth Proportional to 1,239,719.95, 1,710,719.64 and 695,750.68

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Solution

The fourth proportional to 1,239,719.95, 1,710,719.64 and 695,750.68 is: 960,083.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,719.95 : 1,710,719.64 = 695,750.68 : x
  2. Step 2: Convert to fraction form
    1,239,719.95/1,710,719.64 = 695,750.68/x
  3. Step 3: Cross multiply
    1,239,719.95x = 1,710,719.64 × 695,750.68
  4. Step 4: Simplify right side
    1,239,719.95x = 1,190,234,352,819.36
  5. Step 5: Solve for x
    x = 1,190,234,352,819.36/1,239,719.95
  6. Step 6: Final answer
    x = 960,083.25

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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.