Home / 719,382.98-992,748.66-397,093.16

Finding the Fourth Proportional to 719,382.98, 992,748.66 and 397,093.16

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Solution

The fourth proportional to 719,382.98, 992,748.66 and 397,093.16 is: 547,988.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,382.98 : 992,748.66 = 397,093.16 : x
  2. Step 2: Convert to fraction form
    719,382.98/992,748.66 = 397,093.16/x
  3. Step 3: Cross multiply
    719,382.98x = 992,748.66 × 397,093.16
  4. Step 4: Simplify right side
    719,382.98x = 394,213,702,485.17
  5. Step 5: Solve for x
    x = 394,213,702,485.17/719,382.98
  6. Step 6: Final answer
    x = 547,988.64

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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.