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Finding the Fourth Proportional to 554,483.60, 765,186.45 and 299,834.18

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Solution

The fourth proportional to 554,483.60, 765,186.45 and 299,834.18 is: 413,770.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,483.60 : 765,186.45 = 299,834.18 : x
  2. Step 2: Convert to fraction form
    554,483.60/765,186.45 = 299,834.18/x
  3. Step 3: Cross multiply
    554,483.60x = 765,186.45 × 299,834.18
  4. Step 4: Simplify right side
    554,483.60x = 229,429,051,782.86
  5. Step 5: Solve for x
    x = 229,429,051,782.86/554,483.60
  6. Step 6: Final answer
    x = 413,770.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.