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Finding the Fourth Proportional to 554,430.30, 831,645.45 and 554,430.30

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Solution

The fourth proportional to 554,430.30, 831,645.45 and 554,430.30 is: 831,645.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,430.30 : 831,645.45 = 554,430.30 : x
  2. Step 2: Convert to fraction form
    554,430.30/831,645.45 = 554,430.30/x
  3. Step 3: Cross multiply
    554,430.30x = 831,645.45 × 554,430.30
  4. Step 4: Simplify right side
    554,430.30x = 461,089,436,337.14
  5. Step 5: Solve for x
    x = 461,089,436,337.14/554,430.30
  6. Step 6: Final answer
    x = 831,645.45

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.