Home / 1,010,661.80-1,515,992.70-411,314.45

Finding the Fourth Proportional to 1,010,661.80, 1,515,992.70 and 411,314.45

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Solution

The fourth proportional to 1,010,661.80, 1,515,992.70 and 411,314.45 is: 616,971.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010,661.80 : 1,515,992.70 = 411,314.45 : x
  2. Step 2: Convert to fraction form
    1,010,661.80/1,515,992.70 = 411,314.45/x
  3. Step 3: Cross multiply
    1,010,661.80x = 1,515,992.70 × 411,314.45
  4. Step 4: Simplify right side
    1,010,661.80x = 623,549,703,604.52
  5. Step 5: Solve for x
    x = 623,549,703,604.52/1,010,661.80
  6. Step 6: Final answer
    x = 616,971.68

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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.