Home / 383,312.10-528,981.66-213,557.16

Finding the Fourth Proportional to 383,312.10, 528,981.66 and 213,557.16

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Solution

The fourth proportional to 383,312.10, 528,981.66 and 213,557.16 is: 294,714.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,312.10 : 528,981.66 = 213,557.16 : x
  2. Step 2: Convert to fraction form
    383,312.10/528,981.66 = 213,557.16/x
  3. Step 3: Cross multiply
    383,312.10x = 528,981.66 × 213,557.16
  4. Step 4: Simplify right side
    383,312.10x = 112,967,821,001.69
  5. Step 5: Solve for x
    x = 112,967,821,001.69/383,312.10
  6. Step 6: Final answer
    x = 294,714.99

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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.