Home / 666,289.13-919,476.26-360,365.85

Finding the Fourth Proportional to 666,289.13, 919,476.26 and 360,365.85

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Solution

The fourth proportional to 666,289.13, 919,476.26 and 360,365.85 is: 497,303.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,289.13 : 919,476.26 = 360,365.85 : x
  2. Step 2: Convert to fraction form
    666,289.13/919,476.26 = 360,365.85/x
  3. Step 3: Cross multiply
    666,289.13x = 919,476.26 × 360,365.85
  4. Step 4: Simplify right side
    666,289.13x = 331,347,842,187.89
  5. Step 5: Solve for x
    x = 331,347,842,187.89/666,289.13
  6. Step 6: Final answer
    x = 497,303.39

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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.