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Finding the Fourth Proportional to 571,093.38, 788,113.53 and 316,448.82

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Solution

The fourth proportional to 571,093.38, 788,113.53 and 316,448.82 is: 436,701.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,093.38 : 788,113.53 = 316,448.82 : x
  2. Step 2: Convert to fraction form
    571,093.38/788,113.53 = 316,448.82/x
  3. Step 3: Cross multiply
    571,093.38x = 788,113.53 × 316,448.82
  4. Step 4: Simplify right side
    571,093.38x = 249,397,596,594.54
  5. Step 5: Solve for x
    x = 249,397,596,594.54/571,093.38
  6. Step 6: Final answer
    x = 436,701.96

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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.