Home / 420,360.34-630,533.81-195,595.06

Finding the Fourth Proportional to 420,360.34, 630,533.81 and 195,595.06

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Solution

The fourth proportional to 420,360.34, 630,533.81 and 195,595.06 is: 293,389.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,360.34 : 630,533.81 = 195,595.06 : x
  2. Step 2: Convert to fraction form
    420,360.34/630,533.81 = 195,595.06/x
  3. Step 3: Cross multiply
    420,360.34x = 630,533.81 × 195,595.06
  4. Step 4: Simplify right side
    420,360.34x = 123,329,298,398.98
  5. Step 5: Solve for x
    x = 123,329,298,398.98/420,360.34
  6. Step 6: Final answer
    x = 293,389.47

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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.