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Finding the Fourth Proportional to 7,000,977.60, 10,501,466.40 and 6,402,614.40

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Solution

The fourth proportional to 7,000,977.60, 10,501,466.40 and 6,402,614.40 is: 9,603,921.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,000,977.60 : 10,501,466.40 = 6,402,614.40 : x
  2. Step 2: Convert to fraction form
    7,000,977.60/10,501,466.40 = 6,402,614.40/x
  3. Step 3: Cross multiply
    7,000,977.60x = 10,501,466.40 × 6,402,614.40
  4. Step 4: Simplify right side
    7,000,977.60x = 67,236,839,993,756.16
  5. Step 5: Solve for x
    x = 67,236,839,993,756.16/7,000,977.60
  6. Step 6: Final answer
    x = 9,603,921.60

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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.