Home / 696,741.40-1,043,070.90-520,031.80

Finding the Fourth Proportional to 696,741.40, 1,043,070.90 and 520,031.80

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Solution

The fourth proportional to 696,741.40, 1,043,070.90 and 520,031.80 is: 778,524.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,741.40 : 1,043,070.90 = 520,031.80 : x
  2. Step 2: Convert to fraction form
    696,741.40/1,043,070.90 = 520,031.80/x
  3. Step 3: Cross multiply
    696,741.40x = 1,043,070.90 × 520,031.80
  4. Step 4: Simplify right side
    696,741.40x = 542,430,037,654.62
  5. Step 5: Solve for x
    x = 542,430,037,654.62/696,741.40
  6. Step 6: Final answer
    x = 778,524.20

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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.