Home / 918,177.80-1,377,266.70-287,155.40

Finding the Fourth Proportional to 918,177.80, 1,377,266.70 and 287,155.40

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Solution

The fourth proportional to 918,177.80, 1,377,266.70 and 287,155.40 is: 430,733.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,177.80 : 1,377,266.70 = 287,155.40 : x
  2. Step 2: Convert to fraction form
    918,177.80/1,377,266.70 = 287,155.40/x
  3. Step 3: Cross multiply
    918,177.80x = 1,377,266.70 × 287,155.40
  4. Step 4: Simplify right side
    918,177.80x = 395,489,570,145.18
  5. Step 5: Solve for x
    x = 395,489,570,145.18/918,177.80
  6. Step 6: Final answer
    x = 430,733.10

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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.