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Finding the Fourth Proportional to 602,189.16, 830,783.94 and 347,491.14

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Solution

The fourth proportional to 602,189.16, 830,783.94 and 347,491.14 is: 479,400.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,189.16 : 830,783.94 = 347,491.14 : x
  2. Step 2: Convert to fraction form
    602,189.16/830,783.94 = 347,491.14/x
  3. Step 3: Cross multiply
    602,189.16x = 830,783.94 × 347,491.14
  4. Step 4: Simplify right side
    602,189.16x = 288,690,058,404.29
  5. Step 5: Solve for x
    x = 288,690,058,404.29/602,189.16
  6. Step 6: Final answer
    x = 479,400.96

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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.