Home / 403,657.18-557,613.48-382,399.54

Finding the Fourth Proportional to 403,657.18, 557,613.48 and 382,399.54

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Solution

The fourth proportional to 403,657.18, 557,613.48 and 382,399.54 is: 528,248.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,657.18 : 557,613.48 = 382,399.54 : x
  2. Step 2: Convert to fraction form
    403,657.18/557,613.48 = 382,399.54/x
  3. Step 3: Cross multiply
    403,657.18x = 557,613.48 × 382,399.54
  4. Step 4: Simplify right side
    403,657.18x = 213,231,138,289.76
  5. Step 5: Solve for x
    x = 213,231,138,289.76/403,657.18
  6. Step 6: Final answer
    x = 528,248.10

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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.