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Finding the Fourth Proportional to 609,569.12, 841,616.42 and 380,475.39

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Solution

The fourth proportional to 609,569.12, 841,616.42 and 380,475.39 is: 525,312.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,569.12 : 841,616.42 = 380,475.39 : x
  2. Step 2: Convert to fraction form
    609,569.12/841,616.42 = 380,475.39/x
  3. Step 3: Cross multiply
    609,569.12x = 841,616.42 × 380,475.39
  4. Step 4: Simplify right side
    609,569.12x = 320,214,333,727.53
  5. Step 5: Solve for x
    x = 320,214,333,727.53/609,569.12
  6. Step 6: Final answer
    x = 525,312.60

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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.