Home / 291,168.27-402,031.08-286,518.15

Finding the Fourth Proportional to 291,168.27, 402,031.08 and 286,518.15

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Solution

The fourth proportional to 291,168.27, 402,031.08 and 286,518.15 is: 395,610.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,168.27 : 402,031.08 = 286,518.15 : x
  2. Step 2: Convert to fraction form
    291,168.27/402,031.08 = 286,518.15/x
  3. Step 3: Cross multiply
    291,168.27x = 402,031.08 × 286,518.15
  4. Step 4: Simplify right side
    291,168.27x = 115,189,201,284.10
  5. Step 5: Solve for x
    x = 115,189,201,284.10/291,168.27
  6. Step 6: Final answer
    x = 395,610.42

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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.