Home / 291,153.48-402,010.79-286,503.33

Finding the Fourth Proportional to 291,153.48, 402,010.79 and 286,503.33

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Solution

The fourth proportional to 291,153.48, 402,010.79 and 286,503.33 is: 395,590.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,153.48 : 402,010.79 = 286,503.33 : x
  2. Step 2: Convert to fraction form
    291,153.48/402,010.79 = 286,503.33/x
  3. Step 3: Cross multiply
    291,153.48x = 402,010.79 × 286,503.33
  4. Step 4: Simplify right side
    291,153.48x = 115,177,430,030.93
  5. Step 5: Solve for x
    x = 115,177,430,030.93/291,153.48
  6. Step 6: Final answer
    x = 395,590.09

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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.