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Finding the Fourth Proportional to 1,249,926.94, 1,724,893.75 and 698,641.92

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Solution

The fourth proportional to 1,249,926.94, 1,724,893.75 and 698,641.92 is: 964,122.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249,926.94 : 1,724,893.75 = 698,641.92 : x
  2. Step 2: Convert to fraction form
    1,249,926.94/1,724,893.75 = 698,641.92/x
  3. Step 3: Cross multiply
    1,249,926.94x = 1,724,893.75 × 698,641.92
  4. Step 4: Simplify right side
    1,249,926.94x = 1,205,083,082,169.30
  5. Step 5: Solve for x
    x = 1,205,083,082,169.30/1,249,926.94
  6. Step 6: Final answer
    x = 964,122.82

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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.