Home / 673,857,378.59-929,971,303.02-372,436,205.85

Finding the Fourth Proportional to 673,857,378.59, 929,971,303.02 and 372,436,205.85

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Solution

The fourth proportional to 673,857,378.59, 929,971,303.02 and 372,436,205.85 is: 513,988,559.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,857,378.59 : 929,971,303.02 = 372,436,205.85 : x
  2. Step 2: Convert to fraction form
    673,857,378.59/929,971,303.02 = 372,436,205.85/x
  3. Step 3: Cross multiply
    673,857,378.59x = 929,971,303.02 × 372,436,205.85
  4. Step 4: Simplify right side
    673,857,378.59x = 346,354,983,646,149,440
  5. Step 5: Solve for x
    x = 346,354,983,646,149,440/673,857,378.59
  6. Step 6: Final answer
    x = 513,988,559.97

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.