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Finding the Fourth Proportional to 495,579.69, 683,841.87 and 291,585.69

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Solution

The fourth proportional to 495,579.69, 683,841.87 and 291,585.69 is: 402,354.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,579.69 : 683,841.87 = 291,585.69 : x
  2. Step 2: Convert to fraction form
    495,579.69/683,841.87 = 291,585.69/x
  3. Step 3: Cross multiply
    495,579.69x = 683,841.87 × 291,585.69
  4. Step 4: Simplify right side
    495,579.69x = 199,398,503,514.84
  5. Step 5: Solve for x
    x = 199,398,503,514.84/495,579.69
  6. Step 6: Final answer
    x = 402,354.07

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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.