Home / 705,939.48-974,338.20-419,404.32

Finding the Fourth Proportional to 705,939.48, 974,338.20 and 419,404.32

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Solution

The fourth proportional to 705,939.48, 974,338.20 and 419,404.32 is: 578,862.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,939.48 : 974,338.20 = 419,404.32 : x
  2. Step 2: Convert to fraction form
    705,939.48/974,338.20 = 419,404.32/x
  3. Step 3: Cross multiply
    705,939.48x = 974,338.20 × 419,404.32
  4. Step 4: Simplify right side
    705,939.48x = 408,641,650,221.02
  5. Step 5: Solve for x
    x = 408,641,650,221.02/705,939.48
  6. Step 6: Final answer
    x = 578,862.16

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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.