Home / 908,801.55-1,254,140.49-495,337.86

Finding the Fourth Proportional to 908,801.55, 1,254,140.49 and 495,337.86

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Solution

The fourth proportional to 908,801.55, 1,254,140.49 and 495,337.86 is: 683,563.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,801.55 : 1,254,140.49 = 495,337.86 : x
  2. Step 2: Convert to fraction form
    908,801.55/1,254,140.49 = 495,337.86/x
  3. Step 3: Cross multiply
    908,801.55x = 1,254,140.49 × 495,337.86
  4. Step 4: Simplify right side
    908,801.55x = 621,223,266,455.95
  5. Step 5: Solve for x
    x = 621,223,266,455.95/908,801.55
  6. Step 6: Final answer
    x = 683,563.17

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1.5x scale

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.