Home / 854,573.40-1,281,860.10-535,708.80

Finding the Fourth Proportional to 854,573.40, 1,281,860.10 and 535,708.80

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Solution

The fourth proportional to 854,573.40, 1,281,860.10 and 535,708.80 is: 803,563.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,573.40 : 1,281,860.10 = 535,708.80 : x
  2. Step 2: Convert to fraction form
    854,573.40/1,281,860.10 = 535,708.80/x
  3. Step 3: Cross multiply
    854,573.40x = 1,281,860.10 × 535,708.80
  4. Step 4: Simplify right side
    854,573.40x = 686,703,735,938.88
  5. Step 5: Solve for x
    x = 686,703,735,938.88/854,573.40
  6. Step 6: Final answer
    x = 803,563.20

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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.