Home / 527,417.96-727,837.64-312,663.56

Finding the Fourth Proportional to 527,417.96, 727,837.64 and 312,663.56

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Solution

The fourth proportional to 527,417.96, 727,837.64 and 312,663.56 is: 431,476.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,417.96 : 727,837.64 = 312,663.56 : x
  2. Step 2: Convert to fraction form
    527,417.96/727,837.64 = 312,663.56/x
  3. Step 3: Cross multiply
    527,417.96x = 727,837.64 × 312,663.56
  4. Step 4: Simplify right side
    527,417.96x = 227,568,307,624.40
  5. Step 5: Solve for x
    x = 227,568,307,624.40/527,417.96
  6. Step 6: Final answer
    x = 431,476.22

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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.