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Finding the Fourth Proportional to 705,569.54, 973,686.75 and 383,279.63

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Solution

The fourth proportional to 705,569.54, 973,686.75 and 383,279.63 is: 528,926.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,569.54 : 973,686.75 = 383,279.63 : x
  2. Step 2: Convert to fraction form
    705,569.54/973,686.75 = 383,279.63/x
  3. Step 3: Cross multiply
    705,569.54x = 973,686.75 × 383,279.63
  4. Step 4: Simplify right side
    705,569.54x = 373,194,297,275.90
  5. Step 5: Solve for x
    x = 373,194,297,275.90/705,569.54
  6. Step 6: Final answer
    x = 528,926.32

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Double scale
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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.