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Finding the Fourth Proportional to 572,811.40, 800,886.20 and 572,811.40

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Solution

The fourth proportional to 572,811.40, 800,886.20 and 572,811.40 is: 800,886.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,811.40 : 800,886.20 = 572,811.40 : x
  2. Step 2: Convert to fraction form
    572,811.40/800,886.20 = 572,811.40/x
  3. Step 3: Cross multiply
    572,811.40x = 800,886.20 × 572,811.40
  4. Step 4: Simplify right side
    572,811.40x = 458,756,745,462.68
  5. Step 5: Solve for x
    x = 458,756,745,462.68/572,811.40
  6. Step 6: Final answer
    x = 800,886.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.