Home / 1,117,660.40-1,676,555.40-319,000.40

Finding the Fourth Proportional to 1,117,660.40, 1,676,555.40 and 319,000.40

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Solution

The fourth proportional to 1,117,660.40, 1,676,555.40 and 319,000.40 is: 478,519.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,660.40 : 1,676,555.40 = 319,000.40 : x
  2. Step 2: Convert to fraction form
    1,117,660.40/1,676,555.40 = 319,000.40/x
  3. Step 3: Cross multiply
    1,117,660.40x = 1,676,555.40 × 319,000.40
  4. Step 4: Simplify right side
    1,117,660.40x = 534,821,843,222.16
  5. Step 5: Solve for x
    x = 534,821,843,222.16/1,117,660.40
  6. Step 6: Final answer
    x = 478,519.10

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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.