Home / 421,583.65-581,779.09-251,784.97

Finding the Fourth Proportional to 421,583.65, 581,779.09 and 251,784.97

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Solution

The fourth proportional to 421,583.65, 581,779.09 and 251,784.97 is: 347,459.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,583.65 : 581,779.09 = 251,784.97 : x
  2. Step 2: Convert to fraction form
    421,583.65/581,779.09 = 251,784.97/x
  3. Step 3: Cross multiply
    421,583.65x = 581,779.09 × 251,784.97
  4. Step 4: Simplify right side
    421,583.65x = 146,483,229,582.56
  5. Step 5: Solve for x
    x = 146,483,229,582.56/421,583.65
  6. Step 6: Final answer
    x = 347,459.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.