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Finding the Fourth Proportional to 556,141.43, 767,445.65 and 314,409.59

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Solution

The fourth proportional to 556,141.43, 767,445.65 and 314,409.59 is: 433,868.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,141.43 : 767,445.65 = 314,409.59 : x
  2. Step 2: Convert to fraction form
    556,141.43/767,445.65 = 314,409.59/x
  3. Step 3: Cross multiply
    556,141.43x = 767,445.65 × 314,409.59
  4. Step 4: Simplify right side
    556,141.43x = 241,292,272,163.78
  5. Step 5: Solve for x
    x = 241,292,272,163.78/556,141.43
  6. Step 6: Final answer
    x = 433,868.54

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1.5x scale

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.