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Finding the Fourth Proportional to 554,271.12, 764,901.17 and 336,416.76

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Solution

The fourth proportional to 554,271.12, 764,901.17 and 336,416.76 is: 464,259.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,271.12 : 764,901.17 = 336,416.76 : x
  2. Step 2: Convert to fraction form
    554,271.12/764,901.17 = 336,416.76/x
  3. Step 3: Cross multiply
    554,271.12x = 764,901.17 × 336,416.76
  4. Step 4: Simplify right side
    554,271.12x = 257,325,573,331.61
  5. Step 5: Solve for x
    x = 257,325,573,331.61/554,271.12
  6. Step 6: Final answer
    x = 464,259.39

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Double scale
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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.