Home / 571,082.83-788,095.23-312,918.76

Finding the Fourth Proportional to 571,082.83, 788,095.23 and 312,918.76

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Solution

The fourth proportional to 571,082.83, 788,095.23 and 312,918.76 is: 431,828.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,082.83 : 788,095.23 = 312,918.76 : x
  2. Step 2: Convert to fraction form
    571,082.83/788,095.23 = 312,918.76/x
  3. Step 3: Cross multiply
    571,082.83x = 788,095.23 × 312,918.76
  4. Step 4: Simplify right side
    571,082.83x = 246,609,782,133.52
  5. Step 5: Solve for x
    x = 246,609,782,133.52/571,082.83
  6. Step 6: Final answer
    x = 431,828.40

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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.