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Finding the Fourth Proportional to 472,442.40, 651,973.44 and 257,586.03

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Solution

The fourth proportional to 472,442.40, 651,973.44 and 257,586.03 is: 355,470.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,442.40 : 651,973.44 = 257,586.03 : x
  2. Step 2: Convert to fraction form
    472,442.40/651,973.44 = 257,586.03/x
  3. Step 3: Cross multiply
    472,442.40x = 651,973.44 × 257,586.03
  4. Step 4: Simplify right side
    472,442.40x = 167,939,250,075.04
  5. Step 5: Solve for x
    x = 167,939,250,075.04/472,442.40
  6. Step 6: Final answer
    x = 355,470.32

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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.