Home / 1,220,425.80-1,830,638.70-653,555.40

Finding the Fourth Proportional to 1,220,425.80, 1,830,638.70 and 653,555.40

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Solution

The fourth proportional to 1,220,425.80, 1,830,638.70 and 653,555.40 is: 980,333.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,425.80 : 1,830,638.70 = 653,555.40 : x
  2. Step 2: Convert to fraction form
    1,220,425.80/1,830,638.70 = 653,555.40/x
  3. Step 3: Cross multiply
    1,220,425.80x = 1,830,638.70 × 653,555.40
  4. Step 4: Simplify right side
    1,220,425.80x = 1,196,423,807,833.98
  5. Step 5: Solve for x
    x = 1,196,423,807,833.98/1,220,425.80
  6. Step 6: Final answer
    x = 980,333.10

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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.