Home / 403,172.34-556,400.76-231,118.92

Finding the Fourth Proportional to 403,172.34, 556,400.76 and 231,118.92

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Solution

The fourth proportional to 403,172.34, 556,400.76 and 231,118.92 is: 318,957.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,172.34 : 556,400.76 = 231,118.92 : x
  2. Step 2: Convert to fraction form
    403,172.34/556,400.76 = 231,118.92/x
  3. Step 3: Cross multiply
    403,172.34x = 556,400.76 × 231,118.92
  4. Step 4: Simplify right side
    403,172.34x = 128,594,742,738.38
  5. Step 5: Solve for x
    x = 128,594,742,738.38/403,172.34
  6. Step 6: Final answer
    x = 318,957.25

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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.