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Finding the Fourth Proportional to 674,359.68, 930,680.70 and 368,482.50

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Solution

The fourth proportional to 674,359.68, 930,680.70 and 368,482.50 is: 508,541.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,359.68 : 930,680.70 = 368,482.50 : x
  2. Step 2: Convert to fraction form
    674,359.68/930,680.70 = 368,482.50/x
  3. Step 3: Cross multiply
    674,359.68x = 930,680.70 × 368,482.50
  4. Step 4: Simplify right side
    674,359.68x = 342,939,551,037.75
  5. Step 5: Solve for x
    x = 342,939,551,037.75/674,359.68
  6. Step 6: Final answer
    x = 508,541.01

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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.