Home / 457,814,416.40-686,721,624.60-439,957,998.80

Finding the Fourth Proportional to 457,814,416.40, 686,721,624.60 and 439,957,998.80

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Solution

The fourth proportional to 457,814,416.40, 686,721,624.60 and 439,957,998.80 is: 659,936,998.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,814,416.40 : 686,721,624.60 = 439,957,998.80 : x
  2. Step 2: Convert to fraction form
    457,814,416.40/686,721,624.60 = 439,957,998.80/x
  3. Step 3: Cross multiply
    457,814,416.40x = 686,721,624.60 × 439,957,998.80
  4. Step 4: Simplify right side
    457,814,416.40x = 302,128,671,691,700,864
  5. Step 5: Solve for x
    x = 302,128,671,691,700,864/457,814,416.40
  6. Step 6: Final answer
    x = 659,936,998.20

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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.