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Finding the Fourth Proportional to 354,703.71, 489,501.53 and 193,569.16

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Solution

The fourth proportional to 354,703.71, 489,501.53 and 193,569.16 is: 267,131.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,703.71 : 489,501.53 = 193,569.16 : x
  2. Step 2: Convert to fraction form
    354,703.71/489,501.53 = 193,569.16/x
  3. Step 3: Cross multiply
    354,703.71x = 489,501.53 × 193,569.16
  4. Step 4: Simplify right side
    354,703.71x = 94,752,399,980.81
  5. Step 5: Solve for x
    x = 94,752,399,980.81/354,703.71
  6. Step 6: Final answer
    x = 267,131.12

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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.