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Finding the Fourth Proportional to 1,079,928, 1,490,300.64 and 603,000

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Solution

The fourth proportional to 1,079,928, 1,490,300.64 and 603,000 is: 832,140.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,928 : 1,490,300.64 = 603,000 : x
  2. Step 2: Convert to fraction form
    1,079,928/1,490,300.64 = 603,000/x
  3. Step 3: Cross multiply
    1,079,928x = 1,490,300.64 × 603,000
  4. Step 4: Simplify right side
    1,079,928x = 898,651,285,920.00
  5. Step 5: Solve for x
    x = 898,651,285,920.00/1,079,928
  6. Step 6: Final answer
    x = 832,140.00

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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.