Home / 830,000.60-1,245,000.90-823,779.80

Finding the Fourth Proportional to 830,000.60, 1,245,000.90 and 823,779.80

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Solution

The fourth proportional to 830,000.60, 1,245,000.90 and 823,779.80 is: 1,235,669.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,000.60 : 1,245,000.90 = 823,779.80 : x
  2. Step 2: Convert to fraction form
    830,000.60/1,245,000.90 = 823,779.80/x
  3. Step 3: Cross multiply
    830,000.60x = 1,245,000.90 × 823,779.80
  4. Step 4: Simplify right side
    830,000.60x = 1,025,606,592,401.82
  5. Step 5: Solve for x
    x = 1,025,606,592,401.82/830,000.60
  6. Step 6: Final answer
    x = 1,235,669.70

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1.5x scale

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.