Home / 651,199.20-975,486.60-438,622.80

Finding the Fourth Proportional to 651,199.20, 975,486.60 and 438,622.80

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Solution

The fourth proportional to 651,199.20, 975,486.60 and 438,622.80 is: 657,050.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,199.20 : 975,486.60 = 438,622.80 : x
  2. Step 2: Convert to fraction form
    651,199.20/975,486.60 = 438,622.80/x
  3. Step 3: Cross multiply
    651,199.20x = 975,486.60 × 438,622.80
  4. Step 4: Simplify right side
    651,199.20x = 427,870,663,854.48
  5. Step 5: Solve for x
    x = 427,870,663,854.48/651,199.20
  6. Step 6: Final answer
    x = 657,050.35

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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.