Home / 840,925.80-1,161,442.98-612,500.76

Finding the Fourth Proportional to 840,925.80, 1,161,442.98 and 612,500.76

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Solution

The fourth proportional to 840,925.80, 1,161,442.98 and 612,500.76 is: 845,954.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,925.80 : 1,161,442.98 = 612,500.76 : x
  2. Step 2: Convert to fraction form
    840,925.80/1,161,442.98 = 612,500.76/x
  3. Step 3: Cross multiply
    840,925.80x = 1,161,442.98 × 612,500.76
  4. Step 4: Simplify right side
    840,925.80x = 711,384,707,946.67
  5. Step 5: Solve for x
    x = 711,384,707,946.67/840,925.80
  6. Step 6: Final answer
    x = 845,954.19

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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.