Home / 898,127.10-1,347,190.65-399,491.10

Finding the Fourth Proportional to 898,127.10, 1,347,190.65 and 399,491.10

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Solution

The fourth proportional to 898,127.10, 1,347,190.65 and 399,491.10 is: 599,236.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,127.10 : 1,347,190.65 = 399,491.10 : x
  2. Step 2: Convert to fraction form
    898,127.10/1,347,190.65 = 399,491.10/x
  3. Step 3: Cross multiply
    898,127.10x = 1,347,190.65 × 399,491.10
  4. Step 4: Simplify right side
    898,127.10x = 538,190,674,678.22
  5. Step 5: Solve for x
    x = 538,190,674,678.22/898,127.10
  6. Step 6: Final answer
    x = 599,236.65

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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.