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Finding the Fourth Proportional to 907,502.30, 1,361,253.45 and 765,784.70

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Solution

The fourth proportional to 907,502.30, 1,361,253.45 and 765,784.70 is: 1,148,677.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,502.30 : 1,361,253.45 = 765,784.70 : x
  2. Step 2: Convert to fraction form
    907,502.30/1,361,253.45 = 765,784.70/x
  3. Step 3: Cross multiply
    907,502.30x = 1,361,253.45 × 765,784.70
  4. Step 4: Simplify right side
    907,502.30x = 1,042,427,064,832.21
  5. Step 5: Solve for x
    x = 1,042,427,064,832.21/907,502.30
  6. Step 6: Final answer
    x = 1,148,677.05

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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.