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Finding the Fourth Proportional to 630,124.11, 869,536.70 and 358,154.25

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Solution

The fourth proportional to 630,124.11, 869,536.70 and 358,154.25 is: 494,233.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,124.11 : 869,536.70 = 358,154.25 : x
  2. Step 2: Convert to fraction form
    630,124.11/869,536.70 = 358,154.25/x
  3. Step 3: Cross multiply
    630,124.11x = 869,536.70 × 358,154.25
  4. Step 4: Simplify right side
    630,124.11x = 311,428,264,635.98
  5. Step 5: Solve for x
    x = 311,428,264,635.98/630,124.11
  6. Step 6: Final answer
    x = 494,233.22

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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.