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Finding the Fourth Proportional to 609,349.69, 841,778.48 and 486,681.01

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Solution

The fourth proportional to 609,349.69, 841,778.48 and 486,681.01 is: 672,319.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,349.69 : 841,778.48 = 486,681.01 : x
  2. Step 2: Convert to fraction form
    609,349.69/841,778.48 = 486,681.01/x
  3. Step 3: Cross multiply
    609,349.69x = 841,778.48 × 486,681.01
  4. Step 4: Simplify right side
    609,349.69x = 409,677,600,842.67
  5. Step 5: Solve for x
    x = 409,677,600,842.67/609,349.69
  6. Step 6: Final answer
    x = 672,319.37

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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.