Home / 439,547.10-659,320.65-408,054.30

Finding the Fourth Proportional to 439,547.10, 659,320.65 and 408,054.30

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Solution

The fourth proportional to 439,547.10, 659,320.65 and 408,054.30 is: 612,081.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,547.10 : 659,320.65 = 408,054.30 : x
  2. Step 2: Convert to fraction form
    439,547.10/659,320.65 = 408,054.30/x
  3. Step 3: Cross multiply
    439,547.10x = 659,320.65 × 408,054.30
  4. Step 4: Simplify right side
    439,547.10x = 269,038,626,311.30
  5. Step 5: Solve for x
    x = 269,038,626,311.30/439,547.10
  6. Step 6: Final answer
    x = 612,081.45

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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.