Home / 558,325.24-770,418.90-377,430.76

Finding the Fourth Proportional to 558,325.24, 770,418.90 and 377,430.76

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Solution

The fourth proportional to 558,325.24, 770,418.90 and 377,430.76 is: 520,807.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,325.24 : 770,418.90 = 377,430.76 : x
  2. Step 2: Convert to fraction form
    558,325.24/770,418.90 = 377,430.76/x
  3. Step 3: Cross multiply
    558,325.24x = 770,418.90 × 377,430.76
  4. Step 4: Simplify right side
    558,325.24x = 290,779,790,945.36
  5. Step 5: Solve for x
    x = 290,779,790,945.36/558,325.24
  6. Step 6: Final answer
    x = 520,807.17

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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.