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Finding the Fourth Proportional to 877,476, 1,316,214.18 and 316,510.44

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Solution

The fourth proportional to 877,476, 1,316,214.18 and 316,510.44 is: 474,765.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,476 : 1,316,214.18 = 316,510.44 : x
  2. Step 2: Convert to fraction form
    877,476/1,316,214.18 = 316,510.44/x
  3. Step 3: Cross multiply
    877,476x = 1,316,214.18 × 316,510.44
  4. Step 4: Simplify right side
    877,476x = 416,595,529,246.04
  5. Step 5: Solve for x
    x = 416,595,529,246.04/877,476
  6. Step 6: Final answer
    x = 474,765.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.