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Finding the Fourth Proportional to 705,480.88, 973,574.88 and 383,191.18

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Solution

The fourth proportional to 705,480.88, 973,574.88 and 383,191.18 is: 528,809.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,480.88 : 973,574.88 = 383,191.18 : x
  2. Step 2: Convert to fraction form
    705,480.88/973,574.88 = 383,191.18/x
  3. Step 3: Cross multiply
    705,480.88x = 973,574.88 × 383,191.18
  4. Step 4: Simplify right side
    705,480.88x = 373,065,307,085.56
  5. Step 5: Solve for x
    x = 373,065,307,085.56/705,480.88
  6. Step 6: Final answer
    x = 528,809.95

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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.