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Finding the Fourth Proportional to 1,070.38, 1,477.05 and 598.25

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Solution

The fourth proportional to 1,070.38, 1,477.05 and 598.25 is: 825.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070.38 : 1,477.05 = 598.25 : x
  2. Step 2: Convert to fraction form
    1,070.38/1,477.05 = 598.25/x
  3. Step 3: Cross multiply
    1,070.38x = 1,477.05 × 598.25
  4. Step 4: Simplify right side
    1,070.38x = 883,645.16
  5. Step 5: Solve for x
    x = 883,645.16/1,070.38
  6. Step 6: Final answer
    x = 825.54

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Half scale
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Double scale
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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.