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Finding the Fourth Proportional to 1,477.56, 2,038.98 and 953.88

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Solution

The fourth proportional to 1,477.56, 2,038.98 and 953.88 is: 1,316.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,477.56 : 2,038.98 = 953.88 : x
  2. Step 2: Convert to fraction form
    1,477.56/2,038.98 = 953.88/x
  3. Step 3: Cross multiply
    1,477.56x = 2,038.98 × 953.88
  4. Step 4: Simplify right side
    1,477.56x = 1,944,942.24
  5. Step 5: Solve for x
    x = 1,944,942.24/1,477.56
  6. Step 6: Final answer
    x = 1,316.32

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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.