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Finding the Fourth Proportional to 624,088.10, 936,132.15 and 545,356.10

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Solution

The fourth proportional to 624,088.10, 936,132.15 and 545,356.10 is: 818,034.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,088.10 : 936,132.15 = 545,356.10 : x
  2. Step 2: Convert to fraction form
    624,088.10/936,132.15 = 545,356.10/x
  3. Step 3: Cross multiply
    624,088.10x = 936,132.15 × 545,356.10
  4. Step 4: Simplify right side
    624,088.10x = 510,525,378,408.62
  5. Step 5: Solve for x
    x = 510,525,378,408.62/624,088.10
  6. Step 6: Final answer
    x = 818,034.15

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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.