Home / 631,581.52-951,089.68-455,328.76

Finding the Fourth Proportional to 631,581.52, 951,089.68 and 455,328.76

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Solution

The fourth proportional to 631,581.52, 951,089.68 and 455,328.76 is: 685,673.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,581.52 : 951,089.68 = 455,328.76 : x
  2. Step 2: Convert to fraction form
    631,581.52/951,089.68 = 455,328.76/x
  3. Step 3: Cross multiply
    631,581.52x = 951,089.68 × 455,328.76
  4. Step 4: Simplify right side
    631,581.52x = 433,058,484,643.20
  5. Step 5: Solve for x
    x = 433,058,484,643.20/631,581.52
  6. Step 6: Final answer
    x = 685,673.14

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.