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Finding the Fourth Proportional to 592,775.50, 817,806.94 and 388,938.90

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Solution

The fourth proportional to 592,775.50, 817,806.94 and 388,938.90 is: 536,589.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,775.50 : 817,806.94 = 388,938.90 : x
  2. Step 2: Convert to fraction form
    592,775.50/817,806.94 = 388,938.90/x
  3. Step 3: Cross multiply
    592,775.50x = 817,806.94 × 388,938.90
  4. Step 4: Simplify right side
    592,775.50x = 318,076,931,655.97
  5. Step 5: Solve for x
    x = 318,076,931,655.97/592,775.50
  6. Step 6: Final answer
    x = 536,589.20

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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.