Home / 611,784.20-917,676.30-191,102.60

Finding the Fourth Proportional to 611,784.20, 917,676.30 and 191,102.60

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Solution

The fourth proportional to 611,784.20, 917,676.30 and 191,102.60 is: 286,653.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,784.20 : 917,676.30 = 191,102.60 : x
  2. Step 2: Convert to fraction form
    611,784.20/917,676.30 = 191,102.60/x
  3. Step 3: Cross multiply
    611,784.20x = 917,676.30 × 191,102.60
  4. Step 4: Simplify right side
    611,784.20x = 175,370,326,888.38
  5. Step 5: Solve for x
    x = 175,370,326,888.38/611,784.20
  6. Step 6: Final answer
    x = 286,653.90

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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.