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Finding the Fourth Proportional to 618,533.03, 853,598.69 and 346,590.86

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Solution

The fourth proportional to 618,533.03, 853,598.69 and 346,590.86 is: 478,308.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,533.03 : 853,598.69 = 346,590.86 : x
  2. Step 2: Convert to fraction form
    618,533.03/853,598.69 = 346,590.86/x
  3. Step 3: Cross multiply
    618,533.03x = 853,598.69 × 346,590.86
  4. Step 4: Simplify right side
    618,533.03x = 295,849,498,061.03
  5. Step 5: Solve for x
    x = 295,849,498,061.03/618,533.03
  6. Step 6: Final answer
    x = 478,308.33

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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.