Home / 615,321.83-849,186.75-343,442.77

Finding the Fourth Proportional to 615,321.83, 849,186.75 and 343,442.77

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Solution

The fourth proportional to 615,321.83, 849,186.75 and 343,442.77 is: 473,974.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,321.83 : 849,186.75 = 343,442.77 : x
  2. Step 2: Convert to fraction form
    615,321.83/849,186.75 = 343,442.77/x
  3. Step 3: Cross multiply
    615,321.83x = 849,186.75 × 343,442.77
  4. Step 4: Simplify right side
    615,321.83x = 291,647,048,832.24
  5. Step 5: Solve for x
    x = 291,647,048,832.24/615,321.83
  6. Step 6: Final answer
    x = 473,974.81

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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.