Home / 705,813.24-974,106.20-419,334.47

Finding the Fourth Proportional to 705,813.24, 974,106.20 and 419,334.47

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Solution

The fourth proportional to 705,813.24, 974,106.20 and 419,334.47 is: 578,731.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,813.24 : 974,106.20 = 419,334.47 : x
  2. Step 2: Convert to fraction form
    705,813.24/974,106.20 = 419,334.47/x
  3. Step 3: Cross multiply
    705,813.24x = 974,106.20 × 419,334.47
  4. Step 4: Simplify right side
    705,813.24x = 408,476,306,931.42
  5. Step 5: Solve for x
    x = 408,476,306,931.42/705,813.24
  6. Step 6: Final answer
    x = 578,731.43

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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.