Home / 838,516.57-1,157,027.05-470,979.60

Finding the Fourth Proportional to 838,516.57, 1,157,027.05 and 470,979.60

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Solution

The fourth proportional to 838,516.57, 1,157,027.05 and 470,979.60 is: 649,881.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,516.57 : 1,157,027.05 = 470,979.60 : x
  2. Step 2: Convert to fraction form
    838,516.57/1,157,027.05 = 470,979.60/x
  3. Step 3: Cross multiply
    838,516.57x = 1,157,027.05 × 470,979.60
  4. Step 4: Simplify right side
    838,516.57x = 544,936,139,322.73
  5. Step 5: Solve for x
    x = 544,936,139,322.73/838,516.57
  6. Step 6: Final answer
    x = 649,881.18

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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.