Home / 1,287,050.50-1,930,490.70-528,693.67

Finding the Fourth Proportional to 1,287,050.50, 1,930,490.70 and 528,693.67

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Solution

The fourth proportional to 1,287,050.50, 1,930,490.70 and 528,693.67 is: 793,005.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,050.50 : 1,930,490.70 = 528,693.67 : x
  2. Step 2: Convert to fraction form
    1,287,050.50/1,930,490.70 = 528,693.67/x
  3. Step 3: Cross multiply
    1,287,050.50x = 1,930,490.70 × 528,693.67
  4. Step 4: Simplify right side
    1,287,050.50x = 1,020,638,213,083.87
  5. Step 5: Solve for x
    x = 1,020,638,213,083.87/1,287,050.50
  6. Step 6: Final answer
    x = 793,005.57

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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.