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Finding the Fourth Proportional to 313,153.06, 432,263.32 and 185,828.66

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Solution

The fourth proportional to 313,153.06, 432,263.32 and 185,828.66 is: 256,510.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,153.06 : 432,263.32 = 185,828.66 : x
  2. Step 2: Convert to fraction form
    313,153.06/432,263.32 = 185,828.66/x
  3. Step 3: Cross multiply
    313,153.06x = 432,263.32 × 185,828.66
  4. Step 4: Simplify right side
    313,153.06x = 80,326,913,522.75
  5. Step 5: Solve for x
    x = 80,326,913,522.75/313,153.06
  6. Step 6: Final answer
    x = 256,510.07

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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.