Home / 286,739.51-430,081.46-87,061.63

Finding the Fourth Proportional to 286,739.51, 430,081.46 and 87,061.63

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Solution

The fourth proportional to 286,739.51, 430,081.46 and 87,061.63 is: 130,584.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,739.51 : 430,081.46 = 87,061.63 : x
  2. Step 2: Convert to fraction form
    286,739.51/430,081.46 = 87,061.63/x
  3. Step 3: Cross multiply
    286,739.51x = 430,081.46 × 87,061.63
  4. Step 4: Simplify right side
    286,739.51x = 37,443,592,940.38
  5. Step 5: Solve for x
    x = 37,443,592,940.38/286,739.51
  6. Step 6: Final answer
    x = 130,584.00

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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.