Home / 380,303.58-524,259.75-289,501.26

Finding the Fourth Proportional to 380,303.58, 524,259.75 and 289,501.26

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Solution

The fourth proportional to 380,303.58, 524,259.75 and 289,501.26 is: 399,086.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,303.58 : 524,259.75 = 289,501.26 : x
  2. Step 2: Convert to fraction form
    380,303.58/524,259.75 = 289,501.26/x
  3. Step 3: Cross multiply
    380,303.58x = 524,259.75 × 289,501.26
  4. Step 4: Simplify right side
    380,303.58x = 151,773,858,192.29
  5. Step 5: Solve for x
    x = 151,773,858,192.29/380,303.58
  6. Step 6: Final answer
    x = 399,086.06

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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.