Home / 913,988.90-1,261,458.21-532,240.76

Finding the Fourth Proportional to 913,988.90, 1,261,458.21 and 532,240.76

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Solution

The fourth proportional to 913,988.90, 1,261,458.21 and 532,240.76 is: 734,581.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,988.90 : 1,261,458.21 = 532,240.76 : x
  2. Step 2: Convert to fraction form
    913,988.90/1,261,458.21 = 532,240.76/x
  3. Step 3: Cross multiply
    913,988.90x = 1,261,458.21 × 532,240.76
  4. Step 4: Simplify right side
    913,988.90x = 671,399,470,091.35
  5. Step 5: Solve for x
    x = 671,399,470,091.35/913,988.90
  6. Step 6: Final answer
    x = 734,581.65

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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.