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Finding the Fourth Proportional to 611,254.14, 916,759.90 and 307,567.32

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Solution

The fourth proportional to 611,254.14, 916,759.90 and 307,567.32 is: 461,289.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,254.14 : 916,759.90 = 307,567.32 : x
  2. Step 2: Convert to fraction form
    611,254.14/916,759.90 = 307,567.32/x
  3. Step 3: Cross multiply
    611,254.14x = 916,759.90 × 307,567.32
  4. Step 4: Simplify right side
    611,254.14x = 281,965,385,526.47
  5. Step 5: Solve for x
    x = 281,965,385,526.47/611,254.14
  6. Step 6: Final answer
    x = 461,289.94

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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.