Home / 651,739.30-977,608.95-539,764.90

Finding the Fourth Proportional to 651,739.30, 977,608.95 and 539,764.90

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Solution

The fourth proportional to 651,739.30, 977,608.95 and 539,764.90 is: 809,647.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,739.30 : 977,608.95 = 539,764.90 : x
  2. Step 2: Convert to fraction form
    651,739.30/977,608.95 = 539,764.90/x
  3. Step 3: Cross multiply
    651,739.30x = 977,608.95 × 539,764.90
  4. Step 4: Simplify right side
    651,739.30x = 527,678,997,135.86
  5. Step 5: Solve for x
    x = 527,678,997,135.86/651,739.30
  6. Step 6: Final answer
    x = 809,647.35

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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.