Home / 495,180.90-683,352.45-291,240.39

Finding the Fourth Proportional to 495,180.90, 683,352.45 and 291,240.39

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Solution

The fourth proportional to 495,180.90, 683,352.45 and 291,240.39 is: 401,913.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,180.90 : 683,352.45 = 291,240.39 : x
  2. Step 2: Convert to fraction form
    495,180.90/683,352.45 = 291,240.39/x
  3. Step 3: Cross multiply
    495,180.90x = 683,352.45 × 291,240.39
  4. Step 4: Simplify right side
    495,180.90x = 199,019,834,045.46
  5. Step 5: Solve for x
    x = 199,019,834,045.46/495,180.90
  6. Step 6: Final answer
    x = 401,913.39

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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.