Home / 791,164,746.76-1,091,438,958.90-512,796,388.36

Finding the Fourth Proportional to 791,164,746.76, 1,091,438,958.90 and 512,796,388.36

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Solution

The fourth proportional to 791,164,746.76, 1,091,438,958.90 and 512,796,388.36 is: 707,420,241.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,164,746.76 : 1,091,438,958.90 = 512,796,388.36 : x
  2. Step 2: Convert to fraction form
    791,164,746.76/1,091,438,958.90 = 512,796,388.36/x
  3. Step 3: Cross multiply
    791,164,746.76x = 1,091,438,958.90 × 512,796,388.36
  4. Step 4: Simplify right side
    791,164,746.76x = 559,685,956,239,318,528
  5. Step 5: Solve for x
    x = 559,685,956,239,318,528/791,164,746.76
  6. Step 6: Final answer
    x = 707,420,241.53

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Half scale
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Double scale
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1.5x scale

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.