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Finding the Fourth Proportional to 567,598.81, 783,291.66 and 312,959.05

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Solution

The fourth proportional to 567,598.81, 783,291.66 and 312,959.05 is: 431,886.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,598.81 : 783,291.66 = 312,959.05 : x
  2. Step 2: Convert to fraction form
    567,598.81/783,291.66 = 312,959.05/x
  3. Step 3: Cross multiply
    567,598.81x = 783,291.66 × 312,959.05
  4. Step 4: Simplify right side
    567,598.81x = 245,138,213,786.52
  5. Step 5: Solve for x
    x = 245,138,213,786.52/567,598.81
  6. Step 6: Final answer
    x = 431,886.41

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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.