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Finding the Fourth Proportional to 609,346.81, 841,774.51 and 486,678.14

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Solution

The fourth proportional to 609,346.81, 841,774.51 and 486,678.14 is: 672,315.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,346.81 : 841,774.51 = 486,678.14 : x
  2. Step 2: Convert to fraction form
    609,346.81/841,774.51 = 486,678.14/x
  3. Step 3: Cross multiply
    609,346.81x = 841,774.51 × 486,678.14
  4. Step 4: Simplify right side
    609,346.81x = 409,673,252,382.34
  5. Step 5: Solve for x
    x = 409,673,252,382.34/609,346.81
  6. Step 6: Final answer
    x = 672,315.41

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Double scale
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Similar ratio
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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.