Home / 657,821.40-986,732.10-303,527.40

Finding the Fourth Proportional to 657,821.40, 986,732.10 and 303,527.40

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Solution

The fourth proportional to 657,821.40, 986,732.10 and 303,527.40 is: 455,291.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,821.40 : 986,732.10 = 303,527.40 : x
  2. Step 2: Convert to fraction form
    657,821.40/986,732.10 = 303,527.40/x
  3. Step 3: Cross multiply
    657,821.40x = 986,732.10 × 303,527.40
  4. Step 4: Simplify right side
    657,821.40x = 299,500,228,809.54
  5. Step 5: Solve for x
    x = 299,500,228,809.54/657,821.40
  6. Step 6: Final answer
    x = 455,291.10

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Double scale
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Similar ratio
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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.