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Finding the Fourth Proportional to 560,001.66, 772,805.79 and 305,357.10

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Solution

The fourth proportional to 560,001.66, 772,805.79 and 305,357.10 is: 421,394.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,001.66 : 772,805.79 = 305,357.10 : x
  2. Step 2: Convert to fraction form
    560,001.66/772,805.79 = 305,357.10/x
  3. Step 3: Cross multiply
    560,001.66x = 772,805.79 × 305,357.10
  4. Step 4: Simplify right side
    560,001.66x = 235,981,734,897.61
  5. Step 5: Solve for x
    x = 235,981,734,897.61/560,001.66
  6. Step 6: Final answer
    x = 421,394.71

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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.