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Finding the Fourth Proportional to 1,353,994, 1,868,511.72 and 750,420.88

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Solution

The fourth proportional to 1,353,994, 1,868,511.72 and 750,420.88 is: 1,035,580.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353,994 : 1,868,511.72 = 750,420.88 : x
  2. Step 2: Convert to fraction form
    1,353,994/1,868,511.72 = 750,420.88/x
  3. Step 3: Cross multiply
    1,353,994x = 1,868,511.72 × 750,420.88
  4. Step 4: Simplify right side
    1,353,994x = 1,402,170,209,212.71
  5. Step 5: Solve for x
    x = 1,402,170,209,212.71/1,353,994
  6. Step 6: Final answer
    x = 1,035,580.81

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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.