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Finding the Fourth Proportional to 416,871.72, 575,293.56 and 255,815.76

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Solution

The fourth proportional to 416,871.72, 575,293.56 and 255,815.76 is: 353,032.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,871.72 : 575,293.56 = 255,815.76 : x
  2. Step 2: Convert to fraction form
    416,871.72/575,293.56 = 255,815.76/x
  3. Step 3: Cross multiply
    416,871.72x = 575,293.56 × 255,815.76
  4. Step 4: Simplify right side
    416,871.72x = 147,169,159,274.51
  5. Step 5: Solve for x
    x = 147,169,159,274.51/416,871.72
  6. Step 6: Final answer
    x = 353,032.25

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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.