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Finding the Fourth Proportional to 5,311,526.40, 7,966,252.80 and 1,765,670.40

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Solution

The fourth proportional to 5,311,526.40, 7,966,252.80 and 1,765,670.40 is: 2,648,160.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311,526.40 : 7,966,252.80 = 1,765,670.40 : x
  2. Step 2: Convert to fraction form
    5,311,526.40/7,966,252.80 = 1,765,670.40/x
  3. Step 3: Cross multiply
    5,311,526.40x = 7,966,252.80 × 1,765,670.40
  4. Step 4: Simplify right side
    5,311,526.40x = 14,065,776,767,877.12
  5. Step 5: Solve for x
    x = 14,065,776,767,877.12/5,311,526.40
  6. Step 6: Final answer
    x = 2,648,160.94

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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.