Home / 621,554.56-857,215.36-525,228.80

Finding the Fourth Proportional to 621,554.56, 857,215.36 and 525,228.80

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Solution

The fourth proportional to 621,554.56, 857,215.36 and 525,228.80 is: 724,367.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,554.56 : 857,215.36 = 525,228.80 : x
  2. Step 2: Convert to fraction form
    621,554.56/857,215.36 = 525,228.80/x
  3. Step 3: Cross multiply
    621,554.56x = 857,215.36 × 525,228.80
  4. Step 4: Simplify right side
    621,554.56x = 450,234,194,874.37
  5. Step 5: Solve for x
    x = 450,234,194,874.37/621,554.56
  6. Step 6: Final answer
    x = 724,367.94

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Double scale
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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.