Home / 404,945.28-607,420.08-265,586.40

Finding the Fourth Proportional to 404,945.28, 607,420.08 and 265,586.40

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Solution

The fourth proportional to 404,945.28, 607,420.08 and 265,586.40 is: 398,381.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,945.28 : 607,420.08 = 265,586.40 : x
  2. Step 2: Convert to fraction form
    404,945.28/607,420.08 = 265,586.40/x
  3. Step 3: Cross multiply
    404,945.28x = 607,420.08 × 265,586.40
  4. Step 4: Simplify right side
    404,945.28x = 161,322,512,334.91
  5. Step 5: Solve for x
    x = 161,322,512,334.91/404,945.28
  6. Step 6: Final answer
    x = 398,381.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.