Home / 768,256.09-1,152,384.14-207,290.59

Finding the Fourth Proportional to 768,256.09, 1,152,384.14 and 207,290.59

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Solution

The fourth proportional to 768,256.09, 1,152,384.14 and 207,290.59 is: 310,935.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,256.09 : 1,152,384.14 = 207,290.59 : x
  2. Step 2: Convert to fraction form
    768,256.09/1,152,384.14 = 207,290.59/x
  3. Step 3: Cross multiply
    768,256.09x = 1,152,384.14 × 207,290.59
  4. Step 4: Simplify right side
    768,256.09x = 238,878,388,287.24
  5. Step 5: Solve for x
    x = 238,878,388,287.24/768,256.09
  6. Step 6: Final answer
    x = 310,935.89

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Double scale
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Similar ratio
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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.