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Finding the Fourth Proportional to 648,381.16, 894,954.18 and 376,510.60

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Solution

The fourth proportional to 648,381.16, 894,954.18 and 376,510.60 is: 519,693.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,381.16 : 894,954.18 = 376,510.60 : x
  2. Step 2: Convert to fraction form
    648,381.16/894,954.18 = 376,510.60/x
  3. Step 3: Cross multiply
    648,381.16x = 894,954.18 × 376,510.60
  4. Step 4: Simplify right side
    648,381.16x = 336,959,735,284.31
  5. Step 5: Solve for x
    x = 336,959,735,284.31/648,381.16
  6. Step 6: Final answer
    x = 519,693.90

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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.