Home / 496,169.16-684,421.08-312,114.36

Finding the Fourth Proportional to 496,169.16, 684,421.08 and 312,114.36

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Solution

The fourth proportional to 496,169.16, 684,421.08 and 312,114.36 is: 430,533.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,169.16 : 684,421.08 = 312,114.36 : x
  2. Step 2: Convert to fraction form
    496,169.16/684,421.08 = 312,114.36/x
  3. Step 3: Cross multiply
    496,169.16x = 684,421.08 × 312,114.36
  4. Step 4: Simplify right side
    496,169.16x = 213,617,647,354.71
  5. Step 5: Solve for x
    x = 213,617,647,354.71/496,169.16
  6. Step 6: Final answer
    x = 430,533.91

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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.