Home / 993,838.80-1,490,758.20-657,915.60

Finding the Fourth Proportional to 993,838.80, 1,490,758.20 and 657,915.60

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Solution

The fourth proportional to 993,838.80, 1,490,758.20 and 657,915.60 is: 986,873.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,838.80 : 1,490,758.20 = 657,915.60 : x
  2. Step 2: Convert to fraction form
    993,838.80/1,490,758.20 = 657,915.60/x
  3. Step 3: Cross multiply
    993,838.80x = 1,490,758.20 × 657,915.60
  4. Step 4: Simplify right side
    993,838.80x = 980,793,075,607.92
  5. Step 5: Solve for x
    x = 980,793,075,607.92/993,838.80
  6. Step 6: Final answer
    x = 986,873.40

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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.