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Finding the Fourth Proportional to 670,098.96, 924,739.56 and 368,312.40

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Solution

The fourth proportional to 670,098.96, 924,739.56 and 368,312.40 is: 508,272.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,098.96 : 924,739.56 = 368,312.40 : x
  2. Step 2: Convert to fraction form
    670,098.96/924,739.56 = 368,312.40/x
  3. Step 3: Cross multiply
    670,098.96x = 924,739.56 × 368,312.40
  4. Step 4: Simplify right side
    670,098.96x = 340,593,046,718.54
  5. Step 5: Solve for x
    x = 340,593,046,718.54/670,098.96
  6. Step 6: Final answer
    x = 508,272.76

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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.