Home / 931,341.75-1,285,253.24-528,933.75

Finding the Fourth Proportional to 931,341.75, 1,285,253.24 and 528,933.75

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Solution

The fourth proportional to 931,341.75, 1,285,253.24 and 528,933.75 is: 729,929.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,341.75 : 1,285,253.24 = 528,933.75 : x
  2. Step 2: Convert to fraction form
    931,341.75/1,285,253.24 = 528,933.75/x
  3. Step 3: Cross multiply
    931,341.75x = 1,285,253.24 × 528,933.75
  4. Step 4: Simplify right side
    931,341.75x = 679,813,813,288.18
  5. Step 5: Solve for x
    x = 679,813,813,288.18/931,341.75
  6. Step 6: Final answer
    x = 729,929.50

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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.