Home / 1,685,942.34-2,326,618.80-921,979.50

Finding the Fourth Proportional to 1,685,942.34, 2,326,618.80 and 921,979.50

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Solution

The fourth proportional to 1,685,942.34, 2,326,618.80 and 921,979.50 is: 1,272,341.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,685,942.34 : 2,326,618.80 = 921,979.50 : x
  2. Step 2: Convert to fraction form
    1,685,942.34/2,326,618.80 = 921,979.50/x
  3. Step 3: Cross multiply
    1,685,942.34x = 2,326,618.80 × 921,979.50
  4. Step 4: Simplify right side
    1,685,942.34x = 2,145,094,837,914.60
  5. Step 5: Solve for x
    x = 2,145,094,837,914.60/1,685,942.34
  6. Step 6: Final answer
    x = 1,272,341.76

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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.