Home / 653,028.77-979,621.06-315,827.12

Finding the Fourth Proportional to 653,028.77, 979,621.06 and 315,827.12

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Solution

The fourth proportional to 653,028.77, 979,621.06 and 315,827.12 is: 473,778.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,028.77 : 979,621.06 = 315,827.12 : x
  2. Step 2: Convert to fraction form
    653,028.77/979,621.06 = 315,827.12/x
  3. Step 3: Cross multiply
    653,028.77x = 979,621.06 × 315,827.12
  4. Step 4: Simplify right side
    653,028.77x = 309,390,898,071.15
  5. Step 5: Solve for x
    x = 309,390,898,071.15/653,028.77
  6. Step 6: Final answer
    x = 473,778.36

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1.5x scale

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.