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Finding the Fourth Proportional to 572,090.40, 799,876.80 and 572,090.40

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Solution

The fourth proportional to 572,090.40, 799,876.80 and 572,090.40 is: 799,876.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,090.40 : 799,876.80 = 572,090.40 : x
  2. Step 2: Convert to fraction form
    572,090.40/799,876.80 = 572,090.40/x
  3. Step 3: Cross multiply
    572,090.40x = 799,876.80 × 572,090.40
  4. Step 4: Simplify right side
    572,090.40x = 457,601,838,462.72
  5. Step 5: Solve for x
    x = 457,601,838,462.72/572,090.40
  6. Step 6: Final answer
    x = 799,876.80

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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.