Home / 621,480.24-857,113.56-525,154.80

Finding the Fourth Proportional to 621,480.24, 857,113.56 and 525,154.80

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Solution

The fourth proportional to 621,480.24, 857,113.56 and 525,154.80 is: 724,266.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,480.24 : 857,113.56 = 525,154.80 : x
  2. Step 2: Convert to fraction form
    621,480.24/857,113.56 = 525,154.80/x
  3. Step 3: Cross multiply
    621,480.24x = 857,113.56 × 525,154.80
  4. Step 4: Simplify right side
    621,480.24x = 450,117,300,179.09
  5. Step 5: Solve for x
    x = 450,117,300,179.09/621,480.24
  6. Step 6: Final answer
    x = 724,266.47

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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.