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Finding the Fourth Proportional to 706,075.11, 974,390.18 and 383,785.97

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Solution

The fourth proportional to 706,075.11, 974,390.18 and 383,785.97 is: 529,628.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,075.11 : 974,390.18 = 383,785.97 : x
  2. Step 2: Convert to fraction form
    706,075.11/974,390.18 = 383,785.97/x
  3. Step 3: Cross multiply
    706,075.11x = 974,390.18 × 383,785.97
  4. Step 4: Simplify right side
    706,075.11x = 373,957,273,598.89
  5. Step 5: Solve for x
    x = 373,957,273,598.89/706,075.11
  6. Step 6: Final answer
    x = 529,628.18

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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.