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Finding the Fourth Proportional to 424,948.50, 586,955.54 and 308,476.08

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Solution

The fourth proportional to 424,948.50, 586,955.54 and 308,476.08 is: 426,079.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,948.50 : 586,955.54 = 308,476.08 : x
  2. Step 2: Convert to fraction form
    424,948.50/586,955.54 = 308,476.08/x
  3. Step 3: Cross multiply
    424,948.50x = 586,955.54 × 308,476.08
  4. Step 4: Simplify right side
    424,948.50x = 181,061,741,526.81
  5. Step 5: Solve for x
    x = 181,061,741,526.81/424,948.50
  6. Step 6: Final answer
    x = 426,079.26

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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.