Home / 910,239.68-1,256,128.13-502,338.56

Finding the Fourth Proportional to 910,239.68, 1,256,128.13 and 502,338.56

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Solution

The fourth proportional to 910,239.68, 1,256,128.13 and 502,338.56 is: 693,225.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,239.68 : 1,256,128.13 = 502,338.56 : x
  2. Step 2: Convert to fraction form
    910,239.68/1,256,128.13 = 502,338.56/x
  3. Step 3: Cross multiply
    910,239.68x = 1,256,128.13 × 502,338.56
  4. Step 4: Simplify right side
    910,239.68x = 631,001,595,999.69
  5. Step 5: Solve for x
    x = 631,001,595,999.69/910,239.68
  6. Step 6: Final answer
    x = 693,225.76

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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.