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Finding the Fourth Proportional to 661,669.71, 992,510.70 and 188,355.05

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Solution

The fourth proportional to 661,669.71, 992,510.70 and 188,355.05 is: 282,534.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,669.71 : 992,510.70 = 188,355.05 : x
  2. Step 2: Convert to fraction form
    661,669.71/992,510.70 = 188,355.05/x
  3. Step 3: Cross multiply
    661,669.71x = 992,510.70 × 188,355.05
  4. Step 4: Simplify right side
    661,669.71x = 186,944,402,524.04
  5. Step 5: Solve for x
    x = 186,944,402,524.04/661,669.71
  6. Step 6: Final answer
    x = 282,534.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.