Home / 917,365.30-1,376,266.65-443,661.10

Finding the Fourth Proportional to 917,365.30, 1,376,266.65 and 443,661.10

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Solution

The fourth proportional to 917,365.30, 1,376,266.65 and 443,661.10 is: 665,597.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,365.30 : 1,376,266.65 = 443,661.10 : x
  2. Step 2: Convert to fraction form
    917,365.30/1,376,266.65 = 443,661.10/x
  3. Step 3: Cross multiply
    917,365.30x = 1,376,266.65 × 443,661.10
  4. Step 4: Simplify right side
    917,365.30x = 610,595,975,832.32
  5. Step 5: Solve for x
    x = 610,595,975,832.32/917,365.30
  6. Step 6: Final answer
    x = 665,597.42

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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.