Home / 557,216.19-768,984.17-315,466.83

Finding the Fourth Proportional to 557,216.19, 768,984.17 and 315,466.83

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Solution

The fourth proportional to 557,216.19, 768,984.17 and 315,466.83 is: 435,358.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,216.19 : 768,984.17 = 315,466.83 : x
  2. Step 2: Convert to fraction form
    557,216.19/768,984.17 = 315,466.83/x
  3. Step 3: Cross multiply
    557,216.19x = 768,984.17 × 315,466.83
  4. Step 4: Simplify right side
    557,216.19x = 242,588,996,852.75
  5. Step 5: Solve for x
    x = 242,588,996,852.75/557,216.19
  6. Step 6: Final answer
    x = 435,358.84

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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.