Home / 910,416.57-1,256,187.31-523,157.19

Finding the Fourth Proportional to 910,416.57, 1,256,187.31 and 523,157.19

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Solution

The fourth proportional to 910,416.57, 1,256,187.31 and 523,157.19 is: 721,849.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,416.57 : 1,256,187.31 = 523,157.19 : x
  2. Step 2: Convert to fraction form
    910,416.57/1,256,187.31 = 523,157.19/x
  3. Step 3: Cross multiply
    910,416.57x = 1,256,187.31 × 523,157.19
  4. Step 4: Simplify right side
    910,416.57x = 657,183,423,213.26
  5. Step 5: Solve for x
    x = 657,183,423,213.26/910,416.57
  6. Step 6: Final answer
    x = 721,849.15

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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.