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Finding the Fourth Proportional to 556,058.19, 767,339.73 and 301,403.91

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Solution

The fourth proportional to 556,058.19, 767,339.73 and 301,403.91 is: 415,926.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,058.19 : 767,339.73 = 301,403.91 : x
  2. Step 2: Convert to fraction form
    556,058.19/767,339.73 = 301,403.91/x
  3. Step 3: Cross multiply
    556,058.19x = 767,339.73 × 301,403.91
  4. Step 4: Simplify right side
    556,058.19x = 231,279,194,920.34
  5. Step 5: Solve for x
    x = 231,279,194,920.34/556,058.19
  6. Step 6: Final answer
    x = 415,926.24

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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.