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Finding the Fourth Proportional to 611,773.10, 917,659.65 and 572,407.10

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Solution

The fourth proportional to 611,773.10, 917,659.65 and 572,407.10 is: 858,610.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,773.10 : 917,659.65 = 572,407.10 : x
  2. Step 2: Convert to fraction form
    611,773.10/917,659.65 = 572,407.10/x
  3. Step 3: Cross multiply
    611,773.10x = 917,659.65 × 572,407.10
  4. Step 4: Simplify right side
    611,773.10x = 525,274,899,043.52
  5. Step 5: Solve for x
    x = 525,274,899,043.52/611,773.10
  6. Step 6: Final answer
    x = 858,610.65

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Similar ratio
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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.