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Finding the Fourth Proportional to 572,590.30, 858,885.45 and 360,013.90

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Solution

The fourth proportional to 572,590.30, 858,885.45 and 360,013.90 is: 540,020.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,590.30 : 858,885.45 = 360,013.90 : x
  2. Step 2: Convert to fraction form
    572,590.30/858,885.45 = 360,013.90/x
  3. Step 3: Cross multiply
    572,590.30x = 858,885.45 × 360,013.90
  4. Step 4: Simplify right side
    572,590.30x = 309,210,700,507.76
  5. Step 5: Solve for x
    x = 309,210,700,507.76/572,590.30
  6. Step 6: Final answer
    x = 540,020.85

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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.