Home / 559,869.40-839,804.10-510,880.60

Finding the Fourth Proportional to 559,869.40, 839,804.10 and 510,880.60

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Solution

The fourth proportional to 559,869.40, 839,804.10 and 510,880.60 is: 766,320.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,869.40 : 839,804.10 = 510,880.60 : x
  2. Step 2: Convert to fraction form
    559,869.40/839,804.10 = 510,880.60/x
  3. Step 3: Cross multiply
    559,869.40x = 839,804.10 × 510,880.60
  4. Step 4: Simplify right side
    559,869.40x = 429,039,622,490.46
  5. Step 5: Solve for x
    x = 429,039,622,490.46/559,869.40
  6. Step 6: Final answer
    x = 766,320.90

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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.