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Finding the Fourth Proportional to 610,503.88, 915,911.58 and 189,783.40

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Solution

The fourth proportional to 610,503.88, 915,911.58 and 189,783.40 is: 284,723.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,503.88 : 915,911.58 = 189,783.40 : x
  2. Step 2: Convert to fraction form
    610,503.88/915,911.58 = 189,783.40/x
  3. Step 3: Cross multiply
    610,503.88x = 915,911.58 × 189,783.40
  4. Step 4: Simplify right side
    610,503.88x = 173,824,813,751.77
  5. Step 5: Solve for x
    x = 173,824,813,751.77/610,503.88
  6. Step 6: Final answer
    x = 284,723.52

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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.