Home / 989,029.85-1,364,890.91-559,301.36

Finding the Fourth Proportional to 989,029.85, 1,364,890.91 and 559,301.36

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Solution

The fourth proportional to 989,029.85, 1,364,890.91 and 559,301.36 is: 771,852.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,029.85 : 1,364,890.91 = 559,301.36 : x
  2. Step 2: Convert to fraction form
    989,029.85/1,364,890.91 = 559,301.36/x
  3. Step 3: Cross multiply
    989,029.85x = 1,364,890.91 × 559,301.36
  4. Step 4: Simplify right side
    989,029.85x = 763,385,332,593.68
  5. Step 5: Solve for x
    x = 763,385,332,593.68/989,029.85
  6. Step 6: Final answer
    x = 771,852.68

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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.