Home / 749,870.55-1,034,818.38-405,705.33

Finding the Fourth Proportional to 749,870.55, 1,034,818.38 and 405,705.33

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Solution

The fourth proportional to 749,870.55, 1,034,818.38 and 405,705.33 is: 559,871.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,870.55 : 1,034,818.38 = 405,705.33 : x
  2. Step 2: Convert to fraction form
    749,870.55/1,034,818.38 = 405,705.33/x
  3. Step 3: Cross multiply
    749,870.55x = 1,034,818.38 × 405,705.33
  4. Step 4: Simplify right side
    749,870.55x = 419,831,332,347.97
  5. Step 5: Solve for x
    x = 419,831,332,347.97/749,870.55
  6. Step 6: Final answer
    x = 559,871.74

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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.