Home / 695,939.60-1,043,909.40-538,281.20

Finding the Fourth Proportional to 695,939.60, 1,043,909.40 and 538,281.20

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Solution

The fourth proportional to 695,939.60, 1,043,909.40 and 538,281.20 is: 807,421.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,939.60 : 1,043,909.40 = 538,281.20 : x
  2. Step 2: Convert to fraction form
    695,939.60/1,043,909.40 = 538,281.20/x
  3. Step 3: Cross multiply
    695,939.60x = 1,043,909.40 × 538,281.20
  4. Step 4: Simplify right side
    695,939.60x = 561,916,804,523.28
  5. Step 5: Solve for x
    x = 561,916,804,523.28/695,939.60
  6. Step 6: Final answer
    x = 807,421.80

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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.