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Finding the Fourth Proportional to 616,326.65, 922,828.66 and 402,565.22

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Solution

The fourth proportional to 616,326.65, 922,828.66 and 402,565.22 is: 602,762.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,326.65 : 922,828.66 = 402,565.22 : x
  2. Step 2: Convert to fraction form
    616,326.65/922,828.66 = 402,565.22/x
  3. Step 3: Cross multiply
    616,326.65x = 922,828.66 × 402,565.22
  4. Step 4: Simplify right side
    616,326.65x = 371,498,716,914.65
  5. Step 5: Solve for x
    x = 371,498,716,914.65/616,326.65
  6. Step 6: Final answer
    x = 602,762.71

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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.