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Finding the Fourth Proportional to 562,899.30, 776,802.20 and 304,779.04

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Solution

The fourth proportional to 562,899.30, 776,802.20 and 304,779.04 is: 420,595.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,899.30 : 776,802.20 = 304,779.04 : x
  2. Step 2: Convert to fraction form
    562,899.30/776,802.20 = 304,779.04/x
  3. Step 3: Cross multiply
    562,899.30x = 776,802.20 × 304,779.04
  4. Step 4: Simplify right side
    562,899.30x = 236,753,028,785.89
  5. Step 5: Solve for x
    x = 236,753,028,785.89/562,899.30
  6. Step 6: Final answer
    x = 420,595.71

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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.