Home / 826,011.84-1,140,296.76-553,980.36

Finding the Fourth Proportional to 826,011.84, 1,140,296.76 and 553,980.36

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Solution

The fourth proportional to 826,011.84, 1,140,296.76 and 553,980.36 is: 764,761.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,011.84 : 1,140,296.76 = 553,980.36 : x
  2. Step 2: Convert to fraction form
    826,011.84/1,140,296.76 = 553,980.36/x
  3. Step 3: Cross multiply
    826,011.84x = 1,140,296.76 × 553,980.36
  4. Step 4: Simplify right side
    826,011.84x = 631,702,009,611.63
  5. Step 5: Solve for x
    x = 631,702,009,611.63/826,011.84
  6. Step 6: Final answer
    x = 764,761.45

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Half scale
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Double scale
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Similar ratio
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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.