Home / 630,104.64-869,052.96-403,771.20

Finding the Fourth Proportional to 630,104.64, 869,052.96 and 403,771.20

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Solution

The fourth proportional to 630,104.64, 869,052.96 and 403,771.20 is: 556,889.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,104.64 : 869,052.96 = 403,771.20 : x
  2. Step 2: Convert to fraction form
    630,104.64/869,052.96 = 403,771.20/x
  3. Step 3: Cross multiply
    630,104.64x = 869,052.96 × 403,771.20
  4. Step 4: Simplify right side
    630,104.64x = 350,898,556,522.75
  5. Step 5: Solve for x
    x = 350,898,556,522.75/630,104.64
  6. Step 6: Final answer
    x = 556,889.34

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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.