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Finding the Fourth Proportional to 867,441, 1,197,807.30 and 545,689.56

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Solution

The fourth proportional to 867,441, 1,197,807.30 and 545,689.56 is: 753,516.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,441 : 1,197,807.30 = 545,689.56 : x
  2. Step 2: Convert to fraction form
    867,441/1,197,807.30 = 545,689.56/x
  3. Step 3: Cross multiply
    867,441x = 1,197,807.30 × 545,689.56
  4. Step 4: Simplify right side
    867,441x = 653,630,938,501.79
  5. Step 5: Solve for x
    x = 653,630,938,501.79/867,441
  6. Step 6: Final answer
    x = 753,516.31

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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.