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Finding the Fourth Proportional to 774,533.76, 1,068,956.64 and 435,002.01

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Solution

The fourth proportional to 774,533.76, 1,068,956.64 and 435,002.01 is: 600,358.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,533.76 : 1,068,956.64 = 435,002.01 : x
  2. Step 2: Convert to fraction form
    774,533.76/1,068,956.64 = 435,002.01/x
  3. Step 3: Cross multiply
    774,533.76x = 1,068,956.64 × 435,002.01
  4. Step 4: Simplify right side
    774,533.76x = 464,998,287,002.85
  5. Step 5: Solve for x
    x = 464,998,287,002.85/774,533.76
  6. Step 6: Final answer
    x = 600,358.97

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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.