Home / 630,192.80-869,634.42-358,225.04

Finding the Fourth Proportional to 630,192.80, 869,634.42 and 358,225.04

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Solution

The fourth proportional to 630,192.80, 869,634.42 and 358,225.04 is: 494,332.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,192.80 : 869,634.42 = 358,225.04 : x
  2. Step 2: Convert to fraction form
    630,192.80/869,634.42 = 358,225.04/x
  3. Step 3: Cross multiply
    630,192.80x = 869,634.42 × 358,225.04
  4. Step 4: Simplify right side
    630,192.80x = 311,524,824,889.88
  5. Step 5: Solve for x
    x = 311,524,824,889.88/630,192.80
  6. Step 6: Final answer
    x = 494,332.57

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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.