Home / 1,005,953.88-1,388,242.62-553,256.76

Finding the Fourth Proportional to 1,005,953.88, 1,388,242.62 and 553,256.76

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Solution

The fourth proportional to 1,005,953.88, 1,388,242.62 and 553,256.76 is: 763,508.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,953.88 : 1,388,242.62 = 553,256.76 : x
  2. Step 2: Convert to fraction form
    1,005,953.88/1,388,242.62 = 553,256.76/x
  3. Step 3: Cross multiply
    1,005,953.88x = 1,388,242.62 × 553,256.76
  4. Step 4: Simplify right side
    1,005,953.88x = 768,054,614,035.11
  5. Step 5: Solve for x
    x = 768,054,614,035.11/1,005,953.88
  6. Step 6: Final answer
    x = 763,508.77

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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.