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Finding the Fourth Proportional to 406,348.91, 560,765.70 and 245,172.81

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Solution

The fourth proportional to 406,348.91, 560,765.70 and 245,172.81 is: 338,341.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,348.91 : 560,765.70 = 245,172.81 : x
  2. Step 2: Convert to fraction form
    406,348.91/560,765.70 = 245,172.81/x
  3. Step 3: Cross multiply
    406,348.91x = 560,765.70 × 245,172.81
  4. Step 4: Simplify right side
    406,348.91x = 137,484,502,420.62
  5. Step 5: Solve for x
    x = 137,484,502,420.62/406,348.91
  6. Step 6: Final answer
    x = 338,341.01

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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.