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Finding the Fourth Proportional to 863,168,298.04, 1,191,264,562.58 and 528,862,679.80

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Solution

The fourth proportional to 863,168,298.04, 1,191,264,562.58 and 528,862,679.80 is: 729,887,057.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,168,298.04 : 1,191,264,562.58 = 528,862,679.80 : x
  2. Step 2: Convert to fraction form
    863,168,298.04/1,191,264,562.58 = 528,862,679.80/x
  3. Step 3: Cross multiply
    863,168,298.04x = 1,191,264,562.58 × 528,862,679.80
  4. Step 4: Simplify right side
    863,168,298.04x = 630,015,368,916,833,536
  5. Step 5: Solve for x
    x = 630,015,368,916,833,536/863,168,298.04
  6. Step 6: Final answer
    x = 729,887,057.19

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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.