Home / 985,379.85-1,360,071.90-555,909.09

Finding the Fourth Proportional to 985,379.85, 1,360,071.90 and 555,909.09

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Solution

The fourth proportional to 985,379.85, 1,360,071.90 and 555,909.09 is: 767,294.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,379.85 : 1,360,071.90 = 555,909.09 : x
  2. Step 2: Convert to fraction form
    985,379.85/1,360,071.90 = 555,909.09/x
  3. Step 3: Cross multiply
    985,379.85x = 1,360,071.90 × 555,909.09
  4. Step 4: Simplify right side
    985,379.85x = 756,076,332,263.57
  5. Step 5: Solve for x
    x = 756,076,332,263.57/985,379.85
  6. Step 6: Final answer
    x = 767,294.29

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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.