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Finding the Fourth Proportional to 974,340.80, 1,460,128.80 and 719,633.60

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Solution

The fourth proportional to 974,340.80, 1,460,128.80 and 719,633.60 is: 1,078,429.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    974,340.80 : 1,460,128.80 = 719,633.60 : x
  2. Step 2: Convert to fraction form
    974,340.80/1,460,128.80 = 719,633.60/x
  3. Step 3: Cross multiply
    974,340.80x = 1,460,128.80 × 719,633.60
  4. Step 4: Simplify right side
    974,340.80x = 1,050,757,744,807.68
  5. Step 5: Solve for x
    x = 1,050,757,744,807.68/974,340.80
  6. Step 6: Final answer
    x = 1,078,429.38

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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.