Home / 830,385.30-1,243,609.65-830,385.30

Finding the Fourth Proportional to 830,385.30, 1,243,609.65 and 830,385.30

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Solution

The fourth proportional to 830,385.30, 1,243,609.65 and 830,385.30 is: 1,243,609.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,385.30 : 1,243,609.65 = 830,385.30 : x
  2. Step 2: Convert to fraction form
    830,385.30/1,243,609.65 = 830,385.30/x
  3. Step 3: Cross multiply
    830,385.30x = 1,243,609.65 × 830,385.30
  4. Step 4: Simplify right side
    830,385.30x = 1,032,675,172,298.15
  5. Step 5: Solve for x
    x = 1,032,675,172,298.15/830,385.30
  6. Step 6: Final answer
    x = 1,243,609.65

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Double scale
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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.