Home / 688,511.40-1,033,544.70-531,436.20

Finding the Fourth Proportional to 688,511.40, 1,033,544.70 and 531,436.20

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Solution

The fourth proportional to 688,511.40, 1,033,544.70 and 531,436.20 is: 797,754.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,511.40 : 1,033,544.70 = 531,436.20 : x
  2. Step 2: Convert to fraction form
    688,511.40/1,033,544.70 = 531,436.20/x
  3. Step 3: Cross multiply
    688,511.40x = 1,033,544.70 × 531,436.20
  4. Step 4: Simplify right side
    688,511.40x = 549,263,067,898.14
  5. Step 5: Solve for x
    x = 549,263,067,898.14/688,511.40
  6. Step 6: Final answer
    x = 797,754.50

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Double scale
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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.