Home / 1,185,569.28-1,778,358.47-287,009.55

Finding the Fourth Proportional to 1,185,569.28, 1,778,358.47 and 287,009.55

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Solution

The fourth proportional to 1,185,569.28, 1,778,358.47 and 287,009.55 is: 430,515.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,569.28 : 1,778,358.47 = 287,009.55 : x
  2. Step 2: Convert to fraction form
    1,185,569.28/1,778,358.47 = 287,009.55/x
  3. Step 3: Cross multiply
    1,185,569.28x = 1,778,358.47 × 287,009.55
  4. Step 4: Simplify right side
    1,185,569.28x = 510,405,862,778.34
  5. Step 5: Solve for x
    x = 510,405,862,778.34/1,185,569.28
  6. Step 6: Final answer
    x = 430,515.43

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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.