Home / 405,265.20-607,897.80-124,868.40

Finding the Fourth Proportional to 405,265.20, 607,897.80 and 124,868.40

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Solution

The fourth proportional to 405,265.20, 607,897.80 and 124,868.40 is: 187,302.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,265.20 : 607,897.80 = 124,868.40 : x
  2. Step 2: Convert to fraction form
    405,265.20/607,897.80 = 124,868.40/x
  3. Step 3: Cross multiply
    405,265.20x = 607,897.80 × 124,868.40
  4. Step 4: Simplify right side
    405,265.20x = 75,907,225,649.52
  5. Step 5: Solve for x
    x = 75,907,225,649.52/405,265.20
  6. Step 6: Final answer
    x = 187,302.60

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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.