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Finding the Fourth Proportional to 618,547.12, 853,580.54 and 363,914.68

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Solution

The fourth proportional to 618,547.12, 853,580.54 and 363,914.68 is: 502,193.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,547.12 : 853,580.54 = 363,914.68 : x
  2. Step 2: Convert to fraction form
    618,547.12/853,580.54 = 363,914.68/x
  3. Step 3: Cross multiply
    618,547.12x = 853,580.54 × 363,914.68
  4. Step 4: Simplify right side
    618,547.12x = 310,630,489,068.33
  5. Step 5: Solve for x
    x = 310,630,489,068.33/618,547.12
  6. Step 6: Final answer
    x = 502,193.74

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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.