Home / 651,422.40-977,133.60-587,140.80

Finding the Fourth Proportional to 651,422.40, 977,133.60 and 587,140.80

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Solution

The fourth proportional to 651,422.40, 977,133.60 and 587,140.80 is: 880,711.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,422.40 : 977,133.60 = 587,140.80 : x
  2. Step 2: Convert to fraction form
    651,422.40/977,133.60 = 587,140.80/x
  3. Step 3: Cross multiply
    651,422.40x = 977,133.60 × 587,140.80
  4. Step 4: Simplify right side
    651,422.40x = 573,715,003,610.88
  5. Step 5: Solve for x
    x = 573,715,003,610.88/651,422.40
  6. Step 6: Final answer
    x = 880,711.20

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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.