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Finding the Fourth Proportional to 5,323,673.80, 7,985,510.70 and 1,485,488.80

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Solution

The fourth proportional to 5,323,673.80, 7,985,510.70 and 1,485,488.80 is: 2,228,233.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,323,673.80 : 7,985,510.70 = 1,485,488.80 : x
  2. Step 2: Convert to fraction form
    5,323,673.80/7,985,510.70 = 1,485,488.80/x
  3. Step 3: Cross multiply
    5,323,673.80x = 7,985,510.70 × 1,485,488.80
  4. Step 4: Simplify right side
    5,323,673.80x = 11,862,386,707,130.16
  5. Step 5: Solve for x
    x = 11,862,386,707,130.16/5,323,673.80
  6. Step 6: Final answer
    x = 2,228,233.20

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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.