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Finding the Fourth Proportional to 1,587,696, 2,191,055.04 and 872,304

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Solution

The fourth proportional to 1,587,696, 2,191,055.04 and 872,304 is: 1,203,798.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,696 : 2,191,055.04 = 872,304 : x
  2. Step 2: Convert to fraction form
    1,587,696/2,191,055.04 = 872,304/x
  3. Step 3: Cross multiply
    1,587,696x = 2,191,055.04 × 872,304
  4. Step 4: Simplify right side
    1,587,696x = 1,911,266,075,612.16
  5. Step 5: Solve for x
    x = 1,911,266,075,612.16/1,587,696
  6. Step 6: Final answer
    x = 1,203,798.51

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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.