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Finding the Fourth Proportional to 967,807.92, 1,335,573.72 and 538,074.48

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Solution

The fourth proportional to 967,807.92, 1,335,573.72 and 538,074.48 is: 742,542.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    967,807.92 : 1,335,573.72 = 538,074.48 : x
  2. Step 2: Convert to fraction form
    967,807.92/1,335,573.72 = 538,074.48/x
  3. Step 3: Cross multiply
    967,807.92x = 1,335,573.72 × 538,074.48
  4. Step 4: Simplify right side
    967,807.92x = 718,638,134,890.67
  5. Step 5: Solve for x
    x = 718,638,134,890.67/967,807.92
  6. Step 6: Final answer
    x = 742,542.11

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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.