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Finding the Fourth Proportional to 1,295,925.04, 1,788,377.32 and 722,965.22

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Solution

The fourth proportional to 1,295,925.04, 1,788,377.32 and 722,965.22 is: 997,692.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,925.04 : 1,788,377.32 = 722,965.22 : x
  2. Step 2: Convert to fraction form
    1,295,925.04/1,788,377.32 = 722,965.22/x
  3. Step 3: Cross multiply
    1,295,925.04x = 1,788,377.32 × 722,965.22
  4. Step 4: Simplify right side
    1,295,925.04x = 1,292,934,602,596.81
  5. Step 5: Solve for x
    x = 1,292,934,602,596.81/1,295,925.04
  6. Step 6: Final answer
    x = 997,692.43

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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.