Home / 353,218.60-528,618.30-213,077.80

Finding the Fourth Proportional to 353,218.60, 528,618.30 and 213,077.80

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Solution

The fourth proportional to 353,218.60, 528,618.30 and 213,077.80 is: 318,887.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,218.60 : 528,618.30 = 213,077.80 : x
  2. Step 2: Convert to fraction form
    353,218.60/528,618.30 = 213,077.80/x
  3. Step 3: Cross multiply
    353,218.60x = 528,618.30 × 213,077.80
  4. Step 4: Simplify right side
    353,218.60x = 112,636,824,403.74
  5. Step 5: Solve for x
    x = 112,636,824,403.74/353,218.60
  6. Step 6: Final answer
    x = 318,887.01

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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.