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Finding the Fourth Proportional to 976,907.40, 1,465,706.70 and 942,347.40

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Solution

The fourth proportional to 976,907.40, 1,465,706.70 and 942,347.40 is: 1,413,854.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,907.40 : 1,465,706.70 = 942,347.40 : x
  2. Step 2: Convert to fraction form
    976,907.40/1,465,706.70 = 942,347.40/x
  3. Step 3: Cross multiply
    976,907.40x = 1,465,706.70 × 942,347.40
  4. Step 4: Simplify right side
    976,907.40x = 1,381,204,897,907.58
  5. Step 5: Solve for x
    x = 1,381,204,897,907.58/976,907.40
  6. Step 6: Final answer
    x = 1,413,854.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.