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Finding the Fourth Proportional to 647,101.90, 893,009.37 and 360,612.19

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Solution

The fourth proportional to 647,101.90, 893,009.37 and 360,612.19 is: 497,649.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,101.90 : 893,009.37 = 360,612.19 : x
  2. Step 2: Convert to fraction form
    647,101.90/893,009.37 = 360,612.19/x
  3. Step 3: Cross multiply
    647,101.90x = 893,009.37 × 360,612.19
  4. Step 4: Simplify right side
    647,101.90x = 322,030,064,606.22
  5. Step 5: Solve for x
    x = 322,030,064,606.22/647,101.90
  6. Step 6: Final answer
    x = 497,649.70

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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.