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Finding the Fourth Proportional to 807,602,788.72, 1,114,492,636.92 and 436,325,115.34

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Solution

The fourth proportional to 807,602,788.72, 1,114,492,636.92 and 436,325,115.34 is: 602,129,085.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,602,788.72 : 1,114,492,636.92 = 436,325,115.34 : x
  2. Step 2: Convert to fraction form
    807,602,788.72/1,114,492,636.92 = 436,325,115.34/x
  3. Step 3: Cross multiply
    807,602,788.72x = 1,114,492,636.92 × 436,325,115.34
  4. Step 4: Simplify right side
    807,602,788.72x = 486,281,128,349,699,776
  5. Step 5: Solve for x
    x = 486,281,128,349,699,776/807,602,788.72
  6. Step 6: Final answer
    x = 602,129,085.17

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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.