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Finding the Fourth Proportional to 1,249,865.79, 1,724,850.22 and 706,024.50

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Solution

The fourth proportional to 1,249,865.79, 1,724,850.22 and 706,024.50 is: 974,333.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249,865.79 : 1,724,850.22 = 706,024.50 : x
  2. Step 2: Convert to fraction form
    1,249,865.79/1,724,850.22 = 706,024.50/x
  3. Step 3: Cross multiply
    1,249,865.79x = 1,724,850.22 × 706,024.50
  4. Step 4: Simplify right side
    1,249,865.79x = 1,217,786,518,928.91
  5. Step 5: Solve for x
    x = 1,217,786,518,928.91/1,249,865.79
  6. Step 6: Final answer
    x = 974,333.83

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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.