Home / 1,225,196.93-1,690,524-715,800.89

Finding the Fourth Proportional to 1,225,196.93, 1,690,524 and 715,800.89

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Solution

The fourth proportional to 1,225,196.93, 1,690,524 and 715,800.89 is: 987,660.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,196.93 : 1,690,524 = 715,800.89 : x
  2. Step 2: Convert to fraction form
    1,225,196.93/1,690,524 = 715,800.89/x
  3. Step 3: Cross multiply
    1,225,196.93x = 1,690,524 × 715,800.89
  4. Step 4: Simplify right side
    1,225,196.93x = 1,210,078,575,313.74
  5. Step 5: Solve for x
    x = 1,210,078,575,313.74/1,225,196.93
  6. Step 6: Final answer
    x = 987,660.47

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Double scale
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1.5x scale

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.