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Finding the Fourth Proportional to 431,784.90, 595,863.72 and 238,188.24

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Solution

The fourth proportional to 431,784.90, 595,863.72 and 238,188.24 is: 328,700.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,784.90 : 595,863.72 = 238,188.24 : x
  2. Step 2: Convert to fraction form
    431,784.90/595,863.72 = 238,188.24/x
  3. Step 3: Cross multiply
    431,784.90x = 595,863.72 × 238,188.24
  4. Step 4: Simplify right side
    431,784.90x = 141,927,730,746.65
  5. Step 5: Solve for x
    x = 141,927,730,746.65/431,784.90
  6. Step 6: Final answer
    x = 328,700.08

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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.