Home / 630,026.78-869,050.42-403,278.62

Finding the Fourth Proportional to 630,026.78, 869,050.42 and 403,278.62

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Solution

The fourth proportional to 630,026.78, 869,050.42 and 403,278.62 is: 556,277.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,026.78 : 869,050.42 = 403,278.62 : x
  2. Step 2: Convert to fraction form
    630,026.78/869,050.42 = 403,278.62/x
  3. Step 3: Cross multiply
    630,026.78x = 869,050.42 × 403,278.62
  4. Step 4: Simplify right side
    630,026.78x = 350,469,447,726.38
  5. Step 5: Solve for x
    x = 350,469,447,726.38/630,026.78
  6. Step 6: Final answer
    x = 556,277.07

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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.