Home / 618,890.16-928,113.66-334,790.76

Finding the Fourth Proportional to 618,890.16, 928,113.66 and 334,790.76

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Solution

The fourth proportional to 618,890.16, 928,113.66 and 334,790.76 is: 502,066.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,890.16 : 928,113.66 = 334,790.76 : x
  2. Step 2: Convert to fraction form
    618,890.16/928,113.66 = 334,790.76/x
  3. Step 3: Cross multiply
    618,890.16x = 928,113.66 × 334,790.76
  4. Step 4: Simplify right side
    618,890.16x = 310,723,877,597.78
  5. Step 5: Solve for x
    x = 310,723,877,597.78/618,890.16
  6. Step 6: Final answer
    x = 502,066.28

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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.