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Finding the Fourth Proportional to 572,496.40, 800,445.20 and 572,496.40

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Solution

The fourth proportional to 572,496.40, 800,445.20 and 572,496.40 is: 800,445.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,496.40 : 800,445.20 = 572,496.40 : x
  2. Step 2: Convert to fraction form
    572,496.40/800,445.20 = 572,496.40/x
  3. Step 3: Cross multiply
    572,496.40x = 800,445.20 × 572,496.40
  4. Step 4: Simplify right side
    572,496.40x = 458,251,995,397.28
  5. Step 5: Solve for x
    x = 458,251,995,397.28/572,496.40
  6. Step 6: Final answer
    x = 800,445.20

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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.