Home / 661,699.10-993,532.80-512,108.30

Finding the Fourth Proportional to 661,699.10, 993,532.80 and 512,108.30

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Solution

The fourth proportional to 661,699.10, 993,532.80 and 512,108.30 is: 768,924.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,699.10 : 993,532.80 = 512,108.30 : x
  2. Step 2: Convert to fraction form
    661,699.10/993,532.80 = 512,108.30/x
  3. Step 3: Cross multiply
    661,699.10x = 993,532.80 × 512,108.30
  4. Step 4: Simplify right side
    661,699.10x = 508,796,393,202.24
  5. Step 5: Solve for x
    x = 508,796,393,202.24/661,699.10
  6. Step 6: Final answer
    x = 768,924.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.