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Finding the Fourth Proportional to 1,262,347.93, 1,742,053.99 and 689,404.96

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Solution

The fourth proportional to 1,262,347.93, 1,742,053.99 and 689,404.96 is: 951,386.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,347.93 : 1,742,053.99 = 689,404.96 : x
  2. Step 2: Convert to fraction form
    1,262,347.93/1,742,053.99 = 689,404.96/x
  3. Step 3: Cross multiply
    1,262,347.93x = 1,742,053.99 × 689,404.96
  4. Step 4: Simplify right side
    1,262,347.93x = 1,200,980,652,583.52
  5. Step 5: Solve for x
    x = 1,200,980,652,583.52/1,262,347.93
  6. Step 6: Final answer
    x = 951,386.40

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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.