Home / 470,929.52-649,890.87-256,070.90

Finding the Fourth Proportional to 470,929.52, 649,890.87 and 256,070.90

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Solution

The fourth proportional to 470,929.52, 649,890.87 and 256,070.90 is: 353,382.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,929.52 : 649,890.87 = 256,070.90 : x
  2. Step 2: Convert to fraction form
    470,929.52/649,890.87 = 256,070.90/x
  3. Step 3: Cross multiply
    470,929.52x = 649,890.87 × 256,070.90
  4. Step 4: Simplify right side
    470,929.52x = 166,418,139,982.68
  5. Step 5: Solve for x
    x = 166,418,139,982.68/470,929.52
  6. Step 6: Final answer
    x = 353,382.26

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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.