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Finding the Fourth Proportional to 346,597.20, 519,895.80 and 213,044.40

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Solution

The fourth proportional to 346,597.20, 519,895.80 and 213,044.40 is: 319,566.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,597.20 : 519,895.80 = 213,044.40 : x
  2. Step 2: Convert to fraction form
    346,597.20/519,895.80 = 213,044.40/x
  3. Step 3: Cross multiply
    346,597.20x = 519,895.80 × 213,044.40
  4. Step 4: Simplify right side
    346,597.20x = 110,760,888,773.52
  5. Step 5: Solve for x
    x = 110,760,888,773.52/346,597.20
  6. Step 6: Final answer
    x = 319,566.60

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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.