Home / 919,132.14-1,268,384.16-511,225.20

Finding the Fourth Proportional to 919,132.14, 1,268,384.16 and 511,225.20

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Solution

The fourth proportional to 919,132.14, 1,268,384.16 and 511,225.20 is: 705,480.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,132.14 : 1,268,384.16 = 511,225.20 : x
  2. Step 2: Convert to fraction form
    919,132.14/1,268,384.16 = 511,225.20/x
  3. Step 3: Cross multiply
    919,132.14x = 1,268,384.16 × 511,225.20
  4. Step 4: Simplify right side
    919,132.14x = 648,429,945,872.83
  5. Step 5: Solve for x
    x = 648,429,945,872.83/919,132.14
  6. Step 6: Final answer
    x = 705,480.66

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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.