Home / 928,276.80-1,391,378.40-529,108.80

Finding the Fourth Proportional to 928,276.80, 1,391,378.40 and 529,108.80

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Solution

The fourth proportional to 928,276.80, 1,391,378.40 and 529,108.80 is: 793,072.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,276.80 : 1,391,378.40 = 529,108.80 : x
  2. Step 2: Convert to fraction form
    928,276.80/1,391,378.40 = 529,108.80/x
  3. Step 3: Cross multiply
    928,276.80x = 1,391,378.40 × 529,108.80
  4. Step 4: Simplify right side
    928,276.80x = 736,190,555,569.92
  5. Step 5: Solve for x
    x = 736,190,555,569.92/928,276.80
  6. Step 6: Final answer
    x = 793,072.23

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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.