Home / 1,931,461.60-2,897,192.40-511,661.20

Finding the Fourth Proportional to 1,931,461.60, 2,897,192.40 and 511,661.20

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Solution

The fourth proportional to 1,931,461.60, 2,897,192.40 and 511,661.20 is: 767,491.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931,461.60 : 2,897,192.40 = 511,661.20 : x
  2. Step 2: Convert to fraction form
    1,931,461.60/2,897,192.40 = 511,661.20/x
  3. Step 3: Cross multiply
    1,931,461.60x = 2,897,192.40 × 511,661.20
  4. Step 4: Simplify right side
    1,931,461.60x = 1,482,380,940,014.88
  5. Step 5: Solve for x
    x = 1,482,380,940,014.88/1,931,461.60
  6. Step 6: Final answer
    x = 767,491.80

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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.