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Finding the Fourth Proportional to 406,518.54, 606,877.65 and 379,503.56

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Solution

The fourth proportional to 406,518.54, 606,877.65 and 379,503.56 is: 566,547.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,518.54 : 606,877.65 = 379,503.56 : x
  2. Step 2: Convert to fraction form
    406,518.54/606,877.65 = 379,503.56/x
  3. Step 3: Cross multiply
    406,518.54x = 606,877.65 × 379,503.56
  4. Step 4: Simplify right side
    406,518.54x = 230,312,225,625.05
  5. Step 5: Solve for x
    x = 230,312,225,625.05/406,518.54
  6. Step 6: Final answer
    x = 566,547.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.