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Finding the Fourth Proportional to 539,618.16, 745,335.72 and 404,257.68

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Solution

The fourth proportional to 539,618.16, 745,335.72 and 404,257.68 is: 558,372.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,618.16 : 745,335.72 = 404,257.68 : x
  2. Step 2: Convert to fraction form
    539,618.16/745,335.72 = 404,257.68/x
  3. Step 3: Cross multiply
    539,618.16x = 745,335.72 × 404,257.68
  4. Step 4: Simplify right side
    539,618.16x = 301,307,688,988.33
  5. Step 5: Solve for x
    x = 301,307,688,988.33/539,618.16
  6. Step 6: Final answer
    x = 558,372.03

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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.