Home / 519,117.68-778,677.24-145,140.32

Finding the Fourth Proportional to 519,117.68, 778,677.24 and 145,140.32

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Solution

The fourth proportional to 519,117.68, 778,677.24 and 145,140.32 is: 217,710.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,117.68 : 778,677.24 = 145,140.32 : x
  2. Step 2: Convert to fraction form
    519,117.68/778,677.24 = 145,140.32/x
  3. Step 3: Cross multiply
    519,117.68x = 778,677.24 × 145,140.32
  4. Step 4: Simplify right side
    519,117.68x = 113,017,463,790.32
  5. Step 5: Solve for x
    x = 113,017,463,790.32/519,117.68
  6. Step 6: Final answer
    x = 217,710.68

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.