Home / 1,018,400.18-1,405,436.76-565,691.18

Finding the Fourth Proportional to 1,018,400.18, 1,405,436.76 and 565,691.18

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Solution

The fourth proportional to 1,018,400.18, 1,405,436.76 and 565,691.18 is: 780,678.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,400.18 : 1,405,436.76 = 565,691.18 : x
  2. Step 2: Convert to fraction form
    1,018,400.18/1,405,436.76 = 565,691.18/x
  3. Step 3: Cross multiply
    1,018,400.18x = 1,405,436.76 × 565,691.18
  4. Step 4: Simplify right side
    1,018,400.18x = 795,043,179,179.78
  5. Step 5: Solve for x
    x = 795,043,179,179.78/1,018,400.18
  6. Step 6: Final answer
    x = 780,678.55

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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.