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Finding the Fourth Proportional to 256,059.04, 383,574.12 and 127,587.82

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Solution

The fourth proportional to 256,059.04, 383,574.12 and 127,587.82 is: 191,125.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,059.04 : 383,574.12 = 127,587.82 : x
  2. Step 2: Convert to fraction form
    256,059.04/383,574.12 = 127,587.82/x
  3. Step 3: Cross multiply
    256,059.04x = 383,574.12 × 127,587.82
  4. Step 4: Simplify right side
    256,059.04x = 48,939,385,779.22
  5. Step 5: Solve for x
    x = 48,939,385,779.22/256,059.04
  6. Step 6: Final answer
    x = 191,125.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.