Home / 718,527.08-991,567.38-412,623.56

Finding the Fourth Proportional to 718,527.08, 991,567.38 and 412,623.56

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Solution

The fourth proportional to 718,527.08, 991,567.38 and 412,623.56 is: 569,420.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,527.08 : 991,567.38 = 412,623.56 : x
  2. Step 2: Convert to fraction form
    718,527.08/991,567.38 = 412,623.56/x
  3. Step 3: Cross multiply
    718,527.08x = 991,567.38 × 412,623.56
  4. Step 4: Simplify right side
    718,527.08x = 409,144,062,315.47
  5. Step 5: Solve for x
    x = 409,144,062,315.47/718,527.08
  6. Step 6: Final answer
    x = 569,420.52

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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.