Home / 645,779.47-968,705.61-196,514.95

Finding the Fourth Proportional to 645,779.47, 968,705.61 and 196,514.95

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Solution

The fourth proportional to 645,779.47, 968,705.61 and 196,514.95 is: 294,783.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,779.47 : 968,705.61 = 196,514.95 : x
  2. Step 2: Convert to fraction form
    645,779.47/968,705.61 = 196,514.95/x
  3. Step 3: Cross multiply
    645,779.47x = 968,705.61 × 196,514.95
  4. Step 4: Simplify right side
    645,779.47x = 190,365,134,513.87
  5. Step 5: Solve for x
    x = 190,365,134,513.87/645,779.47
  6. Step 6: Final answer
    x = 294,783.50

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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.