Home / 519,485.05-716,882.34-290,045.83

Finding the Fourth Proportional to 519,485.05, 716,882.34 and 290,045.83

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Solution

The fourth proportional to 519,485.05, 716,882.34 and 290,045.83 is: 400,259.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,485.05 : 716,882.34 = 290,045.83 : x
  2. Step 2: Convert to fraction form
    519,485.05/716,882.34 = 290,045.83/x
  3. Step 3: Cross multiply
    519,485.05x = 716,882.34 × 290,045.83
  4. Step 4: Simplify right side
    519,485.05x = 207,928,733,317.64
  5. Step 5: Solve for x
    x = 207,928,733,317.64/519,485.05
  6. Step 6: Final answer
    x = 400,259.32

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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.