Home / 675,210.98-931,815.40-384,866.35

Finding the Fourth Proportional to 675,210.98, 931,815.40 and 384,866.35

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Solution

The fourth proportional to 675,210.98, 931,815.40 and 384,866.35 is: 531,129.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,210.98 : 931,815.40 = 384,866.35 : x
  2. Step 2: Convert to fraction form
    675,210.98/931,815.40 = 384,866.35/x
  3. Step 3: Cross multiply
    675,210.98x = 931,815.40 × 384,866.35
  4. Step 4: Simplify right side
    675,210.98x = 358,624,393,517.64
  5. Step 5: Solve for x
    x = 358,624,393,517.64/675,210.98
  6. Step 6: Final answer
    x = 531,129.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.