Home / 382,411.18-527,740.21-210,336.40

Finding the Fourth Proportional to 382,411.18, 527,740.21 and 210,336.40

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Solution

The fourth proportional to 382,411.18, 527,740.21 and 210,336.40 is: 290,271.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,411.18 : 527,740.21 = 210,336.40 : x
  2. Step 2: Convert to fraction form
    382,411.18/527,740.21 = 210,336.40/x
  3. Step 3: Cross multiply
    382,411.18x = 527,740.21 × 210,336.40
  4. Step 4: Simplify right side
    382,411.18x = 111,002,975,906.64
  5. Step 5: Solve for x
    x = 111,002,975,906.64/382,411.18
  6. Step 6: Final answer
    x = 290,271.26

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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.