Home / 649,236,319.74-971,555,639.13-403,708,575.42

Finding the Fourth Proportional to 649,236,319.74, 971,555,639.13 and 403,708,575.42

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Solution

The fourth proportional to 649,236,319.74, 971,555,639.13 and 403,708,575.42 is: 604,133,396.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,236,319.74 : 971,555,639.13 = 403,708,575.42 : x
  2. Step 2: Convert to fraction form
    649,236,319.74/971,555,639.13 = 403,708,575.42/x
  3. Step 3: Cross multiply
    649,236,319.74x = 971,555,639.13 × 403,708,575.42
  4. Step 4: Simplify right side
    649,236,319.74x = 392,225,343,014,439,936
  5. Step 5: Solve for x
    x = 392,225,343,014,439,936/649,236,319.74
  6. Step 6: Final answer
    x = 604,133,396.56

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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.