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Finding the Fourth Proportional to 567,571.23, 783,253.61 and 312,931.53

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Solution

The fourth proportional to 567,571.23, 783,253.61 and 312,931.53 is: 431,848.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,571.23 : 783,253.61 = 312,931.53 : x
  2. Step 2: Convert to fraction form
    567,571.23/783,253.61 = 312,931.53/x
  3. Step 3: Cross multiply
    567,571.23x = 783,253.61 × 312,931.53
  4. Step 4: Simplify right side
    567,571.23x = 245,104,748,990.67
  5. Step 5: Solve for x
    x = 245,104,748,990.67/567,571.23
  6. Step 6: Final answer
    x = 431,848.44

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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.