Home / 495,239.38-683,420.83-291,312.56

Finding the Fourth Proportional to 495,239.38, 683,420.83 and 291,312.56

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Solution

The fourth proportional to 495,239.38, 683,420.83 and 291,312.56 is: 402,005.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,239.38 : 683,420.83 = 291,312.56 : x
  2. Step 2: Convert to fraction form
    495,239.38/683,420.83 = 291,312.56/x
  3. Step 3: Cross multiply
    495,239.38x = 683,420.83 × 291,312.56
  4. Step 4: Simplify right side
    495,239.38x = 199,089,072,524.90
  5. Step 5: Solve for x
    x = 199,089,072,524.90/495,239.38
  6. Step 6: Final answer
    x = 402,005.74

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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.