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Finding the Fourth Proportional to 476,693.55, 657,841.86 and 258,906.47

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Solution

The fourth proportional to 476,693.55, 657,841.86 and 258,906.47 is: 357,293.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,693.55 : 657,841.86 = 258,906.47 : x
  2. Step 2: Convert to fraction form
    476,693.55/657,841.86 = 258,906.47/x
  3. Step 3: Cross multiply
    476,693.55x = 657,841.86 × 258,906.47
  4. Step 4: Simplify right side
    476,693.55x = 170,319,510,501.63
  5. Step 5: Solve for x
    x = 170,319,510,501.63/476,693.55
  6. Step 6: Final answer
    x = 357,293.51

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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.