Home / 919,663.89-1,379,554.16-288,602.61

Finding the Fourth Proportional to 919,663.89, 1,379,554.16 and 288,602.61

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Solution

The fourth proportional to 919,663.89, 1,379,554.16 and 288,602.61 is: 432,922.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,663.89 : 1,379,554.16 = 288,602.61 : x
  2. Step 2: Convert to fraction form
    919,663.89/1,379,554.16 = 288,602.61/x
  3. Step 3: Cross multiply
    919,663.89x = 1,379,554.16 × 288,602.61
  4. Step 4: Simplify right side
    919,663.89x = 398,142,929,769.35
  5. Step 5: Solve for x
    x = 398,142,929,769.35/919,663.89
  6. Step 6: Final answer
    x = 432,922.22

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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.