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Finding the Fourth Proportional to 705,590.16, 973,721.16 and 383,302.68

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Solution

The fourth proportional to 705,590.16, 973,721.16 and 383,302.68 is: 528,961.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,590.16 : 973,721.16 = 383,302.68 : x
  2. Step 2: Convert to fraction form
    705,590.16/973,721.16 = 383,302.68/x
  3. Step 3: Cross multiply
    705,590.16x = 973,721.16 × 383,302.68
  4. Step 4: Simplify right side
    705,590.16x = 373,229,930,200.71
  5. Step 5: Solve for x
    x = 373,229,930,200.71/705,590.16
  6. Step 6: Final answer
    x = 528,961.36

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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.