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Finding the Fourth Proportional to 1,181,495,502, 1,630,556,736.92 and 672,879,721.08

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Solution

The fourth proportional to 1,181,495,502, 1,630,556,736.92 and 672,879,721.08 is: 928,626,948.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,181,495,502 : 1,630,556,736.92 = 672,879,721.08 : x
  2. Step 2: Convert to fraction form
    1,181,495,502/1,630,556,736.92 = 672,879,721.08/x
  3. Step 3: Cross multiply
    1,181,495,502x = 1,630,556,736.92 × 672,879,721.08
  4. Step 4: Simplify right side
    1,181,495,502x = 1,097,168,562,343,844,608
  5. Step 5: Solve for x
    x = 1,097,168,562,343,844,608/1,181,495,502
  6. Step 6: Final answer
    x = 928,626,948.21

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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.