Home / 709,541.04-979,187.24-387,271.76

Finding the Fourth Proportional to 709,541.04, 979,187.24 and 387,271.76

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Solution

The fourth proportional to 709,541.04, 979,187.24 and 387,271.76 is: 534,446.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,541.04 : 979,187.24 = 387,271.76 : x
  2. Step 2: Convert to fraction form
    709,541.04/979,187.24 = 387,271.76/x
  3. Step 3: Cross multiply
    709,541.04x = 979,187.24 × 387,271.76
  4. Step 4: Simplify right side
    709,541.04x = 379,211,565,804.34
  5. Step 5: Solve for x
    x = 379,211,565,804.34/709,541.04
  6. Step 6: Final answer
    x = 534,446.28

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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.