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Finding the Fourth Proportional to 443,497.43, 611,307.45 and 346,531.79

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Solution

The fourth proportional to 443,497.43, 611,307.45 and 346,531.79 is: 477,652.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,497.43 : 611,307.45 = 346,531.79 : x
  2. Step 2: Convert to fraction form
    443,497.43/611,307.45 = 346,531.79/x
  3. Step 3: Cross multiply
    443,497.43x = 611,307.45 × 346,531.79
  4. Step 4: Simplify right side
    443,497.43x = 211,837,464,888.84
  5. Step 5: Solve for x
    x = 211,837,464,888.84/443,497.43
  6. Step 6: Final answer
    x = 477,652.07

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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.