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Finding the Fourth Proportional to 1,249,961.04, 1,724,938.20 and 706,272.84

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Solution

The fourth proportional to 1,249,961.04, 1,724,938.20 and 706,272.84 is: 974,651.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249,961.04 : 1,724,938.20 = 706,272.84 : x
  2. Step 2: Convert to fraction form
    1,249,961.04/1,724,938.20 = 706,272.84/x
  3. Step 3: Cross multiply
    1,249,961.04x = 1,724,938.20 × 706,272.84
  4. Step 4: Simplify right side
    1,249,961.04x = 1,218,277,001,338.49
  5. Step 5: Solve for x
    x = 1,218,277,001,338.49/1,249,961.04
  6. Step 6: Final answer
    x = 974,651.98

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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.