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Finding the Fourth Proportional to 572,795.40, 859,193.10 and 292,859.40

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Solution

The fourth proportional to 572,795.40, 859,193.10 and 292,859.40 is: 439,289.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,795.40 : 859,193.10 = 292,859.40 : x
  2. Step 2: Convert to fraction form
    572,795.40/859,193.10 = 292,859.40/x
  3. Step 3: Cross multiply
    572,795.40x = 859,193.10 × 292,859.40
  4. Step 4: Simplify right side
    572,795.40x = 251,622,775,750.14
  5. Step 5: Solve for x
    x = 251,622,775,750.14/572,795.40
  6. Step 6: Final answer
    x = 439,289.10

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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.