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Finding the Fourth Proportional to 589,376.07, 813,437.24 and 347,718.51

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Solution

The fourth proportional to 589,376.07, 813,437.24 and 347,718.51 is: 479,909.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,376.07 : 813,437.24 = 347,718.51 : x
  2. Step 2: Convert to fraction form
    589,376.07/813,437.24 = 347,718.51/x
  3. Step 3: Cross multiply
    589,376.07x = 813,437.24 × 347,718.51
  4. Step 4: Simplify right side
    589,376.07x = 282,847,183,332.72
  5. Step 5: Solve for x
    x = 282,847,183,332.72/589,376.07
  6. Step 6: Final answer
    x = 479,909.51

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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.