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Finding the Fourth Proportional to 567,526.41, 783,191.88 and 312,886.71

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Solution

The fourth proportional to 567,526.41, 783,191.88 and 312,886.71 is: 431,786.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,526.41 : 783,191.88 = 312,886.71 : x
  2. Step 2: Convert to fraction form
    567,526.41/783,191.88 = 312,886.71/x
  3. Step 3: Cross multiply
    567,526.41x = 783,191.88 × 312,886.71
  4. Step 4: Simplify right side
    567,526.41x = 245,050,330,631.92
  5. Step 5: Solve for x
    x = 245,050,330,631.92/567,526.41
  6. Step 6: Final answer
    x = 431,786.66

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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.