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Finding the Fourth Proportional to 463,298.76, 693,815.76 and 418,421.52

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Solution

The fourth proportional to 463,298.76, 693,815.76 and 418,421.52 is: 626,609.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,298.76 : 693,815.76 = 418,421.52 : x
  2. Step 2: Convert to fraction form
    463,298.76/693,815.76 = 418,421.52/x
  3. Step 3: Cross multiply
    463,298.76x = 693,815.76 × 418,421.52
  4. Step 4: Simplify right side
    463,298.76x = 290,307,444,899.16
  5. Step 5: Solve for x
    x = 290,307,444,899.16/463,298.76
  6. Step 6: Final answer
    x = 626,609.59

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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.