Home / 898,716.40-1,240,064.27-511,508.93

Finding the Fourth Proportional to 898,716.40, 1,240,064.27 and 511,508.93

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Solution

The fourth proportional to 898,716.40, 1,240,064.27 and 511,508.93 is: 705,788.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,716.40 : 1,240,064.27 = 511,508.93 : x
  2. Step 2: Convert to fraction form
    898,716.40/1,240,064.27 = 511,508.93/x
  3. Step 3: Cross multiply
    898,716.40x = 1,240,064.27 × 511,508.93
  4. Step 4: Simplify right side
    898,716.40x = 634,303,941,039.22
  5. Step 5: Solve for x
    x = 634,303,941,039.22/898,716.40
  6. Step 6: Final answer
    x = 705,788.77

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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.