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Finding the Fourth Proportional to 1,164.16, 1,607.04 and 750.72

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Solution

The fourth proportional to 1,164.16, 1,607.04 and 750.72 is: 1,036.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,164.16 : 1,607.04 = 750.72 : x
  2. Step 2: Convert to fraction form
    1,164.16/1,607.04 = 750.72/x
  3. Step 3: Cross multiply
    1,164.16x = 1,607.04 × 750.72
  4. Step 4: Simplify right side
    1,164.16x = 1,206,437.07
  5. Step 5: Solve for x
    x = 1,206,437.07/1,164.16
  6. Step 6: Final answer
    x = 1,036.32

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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.