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Finding the Fourth Proportional to 435,965.80, 653,948.70 and 401,848.60

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Solution

The fourth proportional to 435,965.80, 653,948.70 and 401,848.60 is: 602,772.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,965.80 : 653,948.70 = 401,848.60 : x
  2. Step 2: Convert to fraction form
    435,965.80/653,948.70 = 401,848.60/x
  3. Step 3: Cross multiply
    435,965.80x = 653,948.70 × 401,848.60
  4. Step 4: Simplify right side
    435,965.80x = 262,788,369,566.82
  5. Step 5: Solve for x
    x = 262,788,369,566.82/435,965.80
  6. Step 6: Final answer
    x = 602,772.90

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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.