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Finding the Fourth Proportional to 424,551.16, 585,875.76 and 316,140.44

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Solution

The fourth proportional to 424,551.16, 585,875.76 and 316,140.44 is: 436,270.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,551.16 : 585,875.76 = 316,140.44 : x
  2. Step 2: Convert to fraction form
    424,551.16/585,875.76 = 316,140.44/x
  3. Step 3: Cross multiply
    424,551.16x = 585,875.76 × 316,140.44
  4. Step 4: Simplify right side
    424,551.16x = 185,219,020,551.73
  5. Step 5: Solve for x
    x = 185,219,020,551.73/424,551.16
  6. Step 6: Final answer
    x = 436,270.20

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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.