Home / 457,140.90-630,840.48-253,183.70

Finding the Fourth Proportional to 457,140.90, 630,840.48 and 253,183.70

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Solution

The fourth proportional to 457,140.90, 630,840.48 and 253,183.70 is: 349,385.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,140.90 : 630,840.48 = 253,183.70 : x
  2. Step 2: Convert to fraction form
    457,140.90/630,840.48 = 253,183.70/x
  3. Step 3: Cross multiply
    457,140.90x = 630,840.48 × 253,183.70
  4. Step 4: Simplify right side
    457,140.90x = 159,718,526,836.18
  5. Step 5: Solve for x
    x = 159,718,526,836.18/457,140.90
  6. Step 6: Final answer
    x = 349,385.77

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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.