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Finding the Fourth Proportional to 867,700,825.20, 1,301,551,237.80 and 742,865,334.30

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Solution

The fourth proportional to 867,700,825.20, 1,301,551,237.80 and 742,865,334.30 is: 1,114,298,001.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,700,825.20 : 1,301,551,237.80 = 742,865,334.30 : x
  2. Step 2: Convert to fraction form
    867,700,825.20/1,301,551,237.80 = 742,865,334.30/x
  3. Step 3: Cross multiply
    867,700,825.20x = 1,301,551,237.80 × 742,865,334.30
  4. Step 4: Simplify right side
    867,700,825.20x = 966,877,295,376,875,648
  5. Step 5: Solve for x
    x = 966,877,295,376,875,648/867,700,825.20
  6. Step 6: Final answer
    x = 1,114,298,001.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.