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Finding the Fourth Proportional to 611,804.55, 917,706.83 and 611,804.55

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Solution

The fourth proportional to 611,804.55, 917,706.83 and 611,804.55 is: 917,706.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,804.55 : 917,706.83 = 611,804.55 : x
  2. Step 2: Convert to fraction form
    611,804.55/917,706.83 = 611,804.55/x
  3. Step 3: Cross multiply
    611,804.55x = 917,706.83 × 611,804.55
  4. Step 4: Simplify right side
    611,804.55x = 561,457,211,101.05
  5. Step 5: Solve for x
    x = 561,457,211,101.05/611,804.55
  6. Step 6: Final answer
    x = 917,706.83

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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.