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Finding the Fourth Proportional to 611,573.70, 917,360.55 and 611,573.70

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Solution

The fourth proportional to 611,573.70, 917,360.55 and 611,573.70 is: 917,360.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,573.70 : 917,360.55 = 611,573.70 : x
  2. Step 2: Convert to fraction form
    611,573.70/917,360.55 = 611,573.70/x
  3. Step 3: Cross multiply
    611,573.70x = 917,360.55 × 611,573.70
  4. Step 4: Simplify right side
    611,573.70x = 561,033,585,797.54
  5. Step 5: Solve for x
    x = 561,033,585,797.54/611,573.70
  6. Step 6: Final answer
    x = 917,360.55

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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.