Home / 858,779.80-1,288,169.70-753,803.80

Finding the Fourth Proportional to 858,779.80, 1,288,169.70 and 753,803.80

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Solution

The fourth proportional to 858,779.80, 1,288,169.70 and 753,803.80 is: 1,130,705.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,779.80 : 1,288,169.70 = 753,803.80 : x
  2. Step 2: Convert to fraction form
    858,779.80/1,288,169.70 = 753,803.80/x
  3. Step 3: Cross multiply
    858,779.80x = 1,288,169.70 × 753,803.80
  4. Step 4: Simplify right side
    858,779.80x = 971,027,214,904.86
  5. Step 5: Solve for x
    x = 971,027,214,904.86/858,779.80
  6. Step 6: Final answer
    x = 1,130,705.70

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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.