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Finding the Fourth Proportional to 572,521.10, 858,781.65 and 362,396.30

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Solution

The fourth proportional to 572,521.10, 858,781.65 and 362,396.30 is: 543,594.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,521.10 : 858,781.65 = 362,396.30 : x
  2. Step 2: Convert to fraction form
    572,521.10/858,781.65 = 362,396.30/x
  3. Step 3: Cross multiply
    572,521.10x = 858,781.65 × 362,396.30
  4. Step 4: Simplify right side
    572,521.10x = 311,219,292,467.90
  5. Step 5: Solve for x
    x = 311,219,292,467.90/572,521.10
  6. Step 6: Final answer
    x = 543,594.45

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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.