Home / 939,217.20-1,409,603.40-434,554.80

Finding the Fourth Proportional to 939,217.20, 1,409,603.40 and 434,554.80

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Solution

The fourth proportional to 939,217.20, 1,409,603.40 and 434,554.80 is: 652,191.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,217.20 : 1,409,603.40 = 434,554.80 : x
  2. Step 2: Convert to fraction form
    939,217.20/1,409,603.40 = 434,554.80/x
  3. Step 3: Cross multiply
    939,217.20x = 1,409,603.40 × 434,554.80
  4. Step 4: Simplify right side
    939,217.20x = 612,549,923,566.32
  5. Step 5: Solve for x
    x = 612,549,923,566.32/939,217.20
  6. Step 6: Final answer
    x = 652,191.98

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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.