Home / 497,533.39-686,548.64-290,850.10

Finding the Fourth Proportional to 497,533.39, 686,548.64 and 290,850.10

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Solution

The fourth proportional to 497,533.39, 686,548.64 and 290,850.10 is: 401,345.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,533.39 : 686,548.64 = 290,850.10 : x
  2. Step 2: Convert to fraction form
    497,533.39/686,548.64 = 290,850.10/x
  3. Step 3: Cross multiply
    497,533.39x = 686,548.64 × 290,850.10
  4. Step 4: Simplify right side
    497,533.39x = 199,682,740,598.86
  5. Step 5: Solve for x
    x = 199,682,740,598.86/497,533.39
  6. Step 6: Final answer
    x = 401,345.41

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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.