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Finding the Fourth Proportional to 705,603.16, 973,739.10 and 383,315.68

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Solution

The fourth proportional to 705,603.16, 973,739.10 and 383,315.68 is: 528,979.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,603.16 : 973,739.10 = 383,315.68 : x
  2. Step 2: Convert to fraction form
    705,603.16/973,739.10 = 383,315.68/x
  3. Step 3: Cross multiply
    705,603.16x = 973,739.10 × 383,315.68
  4. Step 4: Simplify right side
    705,603.16x = 373,249,465,259.09
  5. Step 5: Solve for x
    x = 373,249,465,259.09/705,603.16
  6. Step 6: Final answer
    x = 528,979.30

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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.