Home / 593,810.33-820,139.27-390,767.70

Finding the Fourth Proportional to 593,810.33, 820,139.27 and 390,767.70

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Solution

The fourth proportional to 593,810.33, 820,139.27 and 390,767.70 is: 539,707.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,810.33 : 820,139.27 = 390,767.70 : x
  2. Step 2: Convert to fraction form
    593,810.33/820,139.27 = 390,767.70/x
  3. Step 3: Cross multiply
    593,810.33x = 820,139.27 × 390,767.70
  4. Step 4: Simplify right side
    593,810.33x = 320,483,937,194.50
  5. Step 5: Solve for x
    x = 320,483,937,194.50/593,810.33
  6. Step 6: Final answer
    x = 539,707.58

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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.