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Finding the Fourth Proportional to 611,729.80, 917,594.70 and 611,729.80

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Solution

The fourth proportional to 611,729.80, 917,594.70 and 611,729.80 is: 917,594.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,729.80 : 917,594.70 = 611,729.80 : x
  2. Step 2: Convert to fraction form
    611,729.80/917,594.70 = 611,729.80/x
  3. Step 3: Cross multiply
    611,729.80x = 917,594.70 × 611,729.80
  4. Step 4: Simplify right side
    611,729.80x = 561,320,022,312.06
  5. Step 5: Solve for x
    x = 561,320,022,312.06/611,729.80
  6. Step 6: Final answer
    x = 917,594.70

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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.