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Finding the Fourth Proportional to 572,893.60, 859,340.40 and 324,061.60

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Solution

The fourth proportional to 572,893.60, 859,340.40 and 324,061.60 is: 486,092.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,893.60 : 859,340.40 = 324,061.60 : x
  2. Step 2: Convert to fraction form
    572,893.60/859,340.40 = 324,061.60/x
  3. Step 3: Cross multiply
    572,893.60x = 859,340.40 × 324,061.60
  4. Step 4: Simplify right side
    572,893.60x = 278,479,224,968.64
  5. Step 5: Solve for x
    x = 278,479,224,968.64/572,893.60
  6. Step 6: Final answer
    x = 486,092.40

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Half scale
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Double scale
Find fourth proportional to 572,894.60, 859,341.90 and 324,062.60
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.