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Finding the Fourth Proportional to 867,807.88, 1,197,432.32 and 545,289.57

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Solution

The fourth proportional to 867,807.88, 1,197,432.32 and 545,289.57 is: 752,410.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,807.88 : 1,197,432.32 = 545,289.57 : x
  2. Step 2: Convert to fraction form
    867,807.88/1,197,432.32 = 545,289.57/x
  3. Step 3: Cross multiply
    867,807.88x = 1,197,432.32 × 545,289.57
  4. Step 4: Simplify right side
    867,807.88x = 652,947,352,150.46
  5. Step 5: Solve for x
    x = 652,947,352,150.46/867,807.88
  6. Step 6: Final answer
    x = 752,410.03

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1.5x scale

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.