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Finding the Fourth Proportional to 219,315.60, 328,973.40 and 183,886.20

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Solution

The fourth proportional to 219,315.60, 328,973.40 and 183,886.20 is: 275,829.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,315.60 : 328,973.40 = 183,886.20 : x
  2. Step 2: Convert to fraction form
    219,315.60/328,973.40 = 183,886.20/x
  3. Step 3: Cross multiply
    219,315.60x = 328,973.40 × 183,886.20
  4. Step 4: Simplify right side
    219,315.60x = 60,493,668,427.08
  5. Step 5: Solve for x
    x = 60,493,668,427.08/219,315.60
  6. Step 6: Final answer
    x = 275,829.30

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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.