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Finding the Fourth Proportional to 670,245.88, 924,915.90 and 368,437.72

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Solution

The fourth proportional to 670,245.88, 924,915.90 and 368,437.72 is: 508,431.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,245.88 : 924,915.90 = 368,437.72 : x
  2. Step 2: Convert to fraction form
    670,245.88/924,915.90 = 368,437.72/x
  3. Step 3: Cross multiply
    670,245.88x = 924,915.90 × 368,437.72
  4. Step 4: Simplify right side
    670,245.88x = 340,773,905,387.75
  5. Step 5: Solve for x
    x = 340,773,905,387.75/670,245.88
  6. Step 6: Final answer
    x = 508,431.18

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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.