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Finding the Fourth Proportional to 1,036,906.64, 1,552,975.32 and 865,368.08

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Solution

The fourth proportional to 1,036,906.64, 1,552,975.32 and 865,368.08 is: 1,296,061.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036,906.64 : 1,552,975.32 = 865,368.08 : x
  2. Step 2: Convert to fraction form
    1,036,906.64/1,552,975.32 = 865,368.08/x
  3. Step 3: Cross multiply
    1,036,906.64x = 1,552,975.32 × 865,368.08
  4. Step 4: Simplify right side
    1,036,906.64x = 1,343,895,270,955.79
  5. Step 5: Solve for x
    x = 1,343,895,270,955.79/1,036,906.64
  6. Step 6: Final answer
    x = 1,296,061.98

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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.