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Finding the Fourth Proportional to 1,868,914.61, 2,803,605.50 and 731,530.02

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Solution

The fourth proportional to 1,868,914.61, 2,803,605.50 and 731,530.02 is: 1,097,386.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868,914.61 : 2,803,605.50 = 731,530.02 : x
  2. Step 2: Convert to fraction form
    1,868,914.61/2,803,605.50 = 731,530.02/x
  3. Step 3: Cross multiply
    1,868,914.61x = 2,803,605.50 × 731,530.02
  4. Step 4: Simplify right side
    1,868,914.61x = 2,050,921,587,487.11
  5. Step 5: Solve for x
    x = 2,050,921,587,487.11/1,868,914.61
  6. Step 6: Final answer
    x = 1,097,386.46

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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.