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Finding the Fourth Proportional to 602.06, 830.85 and 340.07

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Solution

The fourth proportional to 602.06, 830.85 and 340.07 is: 469.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    602.06 : 830.85 = 340.07 : x
  2. Step 2: Convert to fraction form
    602.06/830.85 = 340.07/x
  3. Step 3: Cross multiply
    602.06x = 830.85 × 340.07
  4. Step 4: Simplify right side
    602.06x = 282,547.16
  5. Step 5: Solve for x
    x = 282,547.16/602.06
  6. Step 6: Final answer
    x = 469.30

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.