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Finding the Fourth Proportional to 1,048,617, 1,572,931.26 and 260,649

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Solution

The fourth proportional to 1,048,617, 1,572,931.26 and 260,649 is: 390,974.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,048,617 : 1,572,931.26 = 260,649 : x
  2. Step 2: Convert to fraction form
    1,048,617/1,572,931.26 = 260,649/x
  3. Step 3: Cross multiply
    1,048,617x = 1,572,931.26 × 260,649
  4. Step 4: Simplify right side
    1,048,617x = 409,982,959,987.74
  5. Step 5: Solve for x
    x = 409,982,959,987.74/1,048,617
  6. Step 6: Final answer
    x = 390,974.93

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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.