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Finding the Fourth Proportional to 1,249,908.70, 1,724,865.42 and 676,935.76

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Solution

The fourth proportional to 1,249,908.70, 1,724,865.42 and 676,935.76 is: 934,166.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249,908.70 : 1,724,865.42 = 676,935.76 : x
  2. Step 2: Convert to fraction form
    1,249,908.70/1,724,865.42 = 676,935.76/x
  3. Step 3: Cross multiply
    1,249,908.70x = 1,724,865.42 × 676,935.76
  4. Step 4: Simplify right side
    1,249,908.70x = 1,167,623,083,985.42
  5. Step 5: Solve for x
    x = 1,167,623,083,985.42/1,249,908.70
  6. Step 6: Final answer
    x = 934,166.70

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.