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Finding the Fourth Proportional to 488,590.30, 732,885.45 and 370,492.30

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Solution

The fourth proportional to 488,590.30, 732,885.45 and 370,492.30 is: 555,738.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,590.30 : 732,885.45 = 370,492.30 : x
  2. Step 2: Convert to fraction form
    488,590.30/732,885.45 = 370,492.30/x
  3. Step 3: Cross multiply
    488,590.30x = 732,885.45 × 370,492.30
  4. Step 4: Simplify right side
    488,590.30x = 271,528,416,007.04
  5. Step 5: Solve for x
    x = 271,528,416,007.04/488,590.30
  6. Step 6: Final answer
    x = 555,738.45

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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.