Home / 674,256.39-930,502.07-387,776.67

Finding the Fourth Proportional to 674,256.39, 930,502.07 and 387,776.67

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Solution

The fourth proportional to 674,256.39, 930,502.07 and 387,776.67 is: 535,148.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,256.39 : 930,502.07 = 387,776.67 : x
  2. Step 2: Convert to fraction form
    674,256.39/930,502.07 = 387,776.67/x
  3. Step 3: Cross multiply
    674,256.39x = 930,502.07 × 387,776.67
  4. Step 4: Simplify right side
    674,256.39x = 360,826,987,541.31
  5. Step 5: Solve for x
    x = 360,826,987,541.31/674,256.39
  6. Step 6: Final answer
    x = 535,148.05

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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.