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Finding the Fourth Proportional to 656,862.80, 984,905.40 and 341,934.80

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Solution

The fourth proportional to 656,862.80, 984,905.40 and 341,934.80 is: 512,699.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,862.80 : 984,905.40 = 341,934.80 : x
  2. Step 2: Convert to fraction form
    656,862.80/984,905.40 = 341,934.80/x
  3. Step 3: Cross multiply
    656,862.80x = 984,905.40 × 341,934.80
  4. Step 4: Simplify right side
    656,862.80x = 336,773,430,967.92
  5. Step 5: Solve for x
    x = 336,773,430,967.92/656,862.80
  6. Step 6: Final answer
    x = 512,699.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.