Home / 291,154.48-402,012.17-286,504.33

Finding the Fourth Proportional to 291,154.48, 402,012.17 and 286,504.33

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Solution

The fourth proportional to 291,154.48, 402,012.17 and 286,504.33 is: 395,591.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,154.48 : 402,012.17 = 286,504.33 : x
  2. Step 2: Convert to fraction form
    291,154.48/402,012.17 = 286,504.33/x
  3. Step 3: Cross multiply
    291,154.48x = 402,012.17 × 286,504.33
  4. Step 4: Simplify right side
    291,154.48x = 115,178,227,417.70
  5. Step 5: Solve for x
    x = 115,178,227,417.70/291,154.48
  6. Step 6: Final answer
    x = 395,591.47

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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.