Home / 712,527.93-983,262.06-390,240.66

Finding the Fourth Proportional to 712,527.93, 983,262.06 and 390,240.66

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Solution

The fourth proportional to 712,527.93, 983,262.06 and 390,240.66 is: 538,517.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,527.93 : 983,262.06 = 390,240.66 : x
  2. Step 2: Convert to fraction form
    712,527.93/983,262.06 = 390,240.66/x
  3. Step 3: Cross multiply
    712,527.93x = 983,262.06 × 390,240.66
  4. Step 4: Simplify right side
    712,527.93x = 383,708,835,247.36
  5. Step 5: Solve for x
    x = 383,708,835,247.36/712,527.93
  6. Step 6: Final answer
    x = 538,517.61

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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.