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Finding the Fourth Proportional to 572,607.60, 858,911.40 and 292,671.60

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Solution

The fourth proportional to 572,607.60, 858,911.40 and 292,671.60 is: 439,007.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,607.60 : 858,911.40 = 292,671.60 : x
  2. Step 2: Convert to fraction form
    572,607.60/858,911.40 = 292,671.60/x
  3. Step 3: Cross multiply
    572,607.60x = 858,911.40 × 292,671.60
  4. Step 4: Simplify right side
    572,607.60x = 251,378,973,696.24
  5. Step 5: Solve for x
    x = 251,378,973,696.24/572,607.60
  6. Step 6: Final answer
    x = 439,007.40

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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.