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Finding the Fourth Proportional to 572,111.10, 858,166.65 and 545,867.10

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Solution

The fourth proportional to 572,111.10, 858,166.65 and 545,867.10 is: 818,800.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,111.10 : 858,166.65 = 545,867.10 : x
  2. Step 2: Convert to fraction form
    572,111.10/858,166.65 = 545,867.10/x
  3. Step 3: Cross multiply
    572,111.10x = 858,166.65 × 545,867.10
  4. Step 4: Simplify right side
    572,111.10x = 468,444,940,552.22
  5. Step 5: Solve for x
    x = 468,444,940,552.22/572,111.10
  6. Step 6: Final answer
    x = 818,800.65

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Double scale
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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.