Home / 756,123.60-1,134,185.40-653,480.40

Finding the Fourth Proportional to 756,123.60, 1,134,185.40 and 653,480.40

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Solution

The fourth proportional to 756,123.60, 1,134,185.40 and 653,480.40 is: 980,220.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,123.60 : 1,134,185.40 = 653,480.40 : x
  2. Step 2: Convert to fraction form
    756,123.60/1,134,185.40 = 653,480.40/x
  3. Step 3: Cross multiply
    756,123.60x = 1,134,185.40 × 653,480.40
  4. Step 4: Simplify right side
    756,123.60x = 741,167,928,866.16
  5. Step 5: Solve for x
    x = 741,167,928,866.16/756,123.60
  6. Step 6: Final answer
    x = 980,220.60

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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.