Home / 942,153.60-1,413,230.40-643,555.20

Finding the Fourth Proportional to 942,153.60, 1,413,230.40 and 643,555.20

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Solution

The fourth proportional to 942,153.60, 1,413,230.40 and 643,555.20 is: 965,332.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,153.60 : 1,413,230.40 = 643,555.20 : x
  2. Step 2: Convert to fraction form
    942,153.60/1,413,230.40 = 643,555.20/x
  3. Step 3: Cross multiply
    942,153.60x = 1,413,230.40 × 643,555.20
  4. Step 4: Simplify right side
    942,153.60x = 909,491,772,718.08
  5. Step 5: Solve for x
    x = 909,491,772,718.08/942,153.60
  6. Step 6: Final answer
    x = 965,332.80

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Similar ratio
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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.