Home / 839,412.18-1,158,355.08-457,430.76

Finding the Fourth Proportional to 839,412.18, 1,158,355.08 and 457,430.76

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Solution

The fourth proportional to 839,412.18, 1,158,355.08 and 457,430.76 is: 631,236.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,412.18 : 1,158,355.08 = 457,430.76 : x
  2. Step 2: Convert to fraction form
    839,412.18/1,158,355.08 = 457,430.76/x
  3. Step 3: Cross multiply
    839,412.18x = 1,158,355.08 × 457,430.76
  4. Step 4: Simplify right side
    839,412.18x = 529,867,244,594.26
  5. Step 5: Solve for x
    x = 529,867,244,594.26/839,412.18
  6. Step 6: Final answer
    x = 631,236.07

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Double scale
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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.