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Finding the Fourth Proportional to 1,070.12, 1,476.90 and 598.10

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Solution

The fourth proportional to 1,070.12, 1,476.90 and 598.10 is: 825.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070.12 : 1,476.90 = 598.10 : x
  2. Step 2: Convert to fraction form
    1,070.12/1,476.90 = 598.10/x
  3. Step 3: Cross multiply
    1,070.12x = 1,476.90 × 598.10
  4. Step 4: Simplify right side
    1,070.12x = 883,326.51
  5. Step 5: Solve for x
    x = 883,326.51/1,070.12
  6. Step 6: Final answer
    x = 825.44

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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.