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Finding the Fourth Proportional to 436,988.92, 655,485.44 and 152,678.24

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Solution

The fourth proportional to 436,988.92, 655,485.44 and 152,678.24 is: 229,018.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,988.92 : 655,485.44 = 152,678.24 : x
  2. Step 2: Convert to fraction form
    436,988.92/655,485.44 = 152,678.24/x
  3. Step 3: Cross multiply
    436,988.92x = 655,485.44 × 152,678.24
  4. Step 4: Simplify right side
    436,988.92x = 100,078,363,324.83
  5. Step 5: Solve for x
    x = 100,078,363,324.83/436,988.92
  6. Step 6: Final answer
    x = 229,018.08

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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.