Home / 403,215.90-604,823.85-328,566.30

Finding the Fourth Proportional to 403,215.90, 604,823.85 and 328,566.30

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Solution

The fourth proportional to 403,215.90, 604,823.85 and 328,566.30 is: 492,849.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,215.90 : 604,823.85 = 328,566.30 : x
  2. Step 2: Convert to fraction form
    403,215.90/604,823.85 = 328,566.30/x
  3. Step 3: Cross multiply
    403,215.90x = 604,823.85 × 328,566.30
  4. Step 4: Simplify right side
    403,215.90x = 198,724,734,546.26
  5. Step 5: Solve for x
    x = 198,724,734,546.26/403,215.90
  6. Step 6: Final answer
    x = 492,849.45

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.