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Finding the Fourth Proportional to 569,841.35, 786,536.53 and 354,854.39

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Solution

The fourth proportional to 569,841.35, 786,536.53 and 354,854.39 is: 489,795.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,841.35 : 786,536.53 = 354,854.39 : x
  2. Step 2: Convert to fraction form
    569,841.35/786,536.53 = 354,854.39/x
  3. Step 3: Cross multiply
    569,841.35x = 786,536.53 × 354,854.39
  4. Step 4: Simplify right side
    569,841.35x = 279,105,935,746.05
  5. Step 5: Solve for x
    x = 279,105,935,746.05/569,841.35
  6. Step 6: Final answer
    x = 489,795.87

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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.