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Finding the Fourth Proportional to 1,265,851,409.80, 1,898,777,114.70 and 852,602,888.20

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Solution

The fourth proportional to 1,265,851,409.80, 1,898,777,114.70 and 852,602,888.20 is: 1,278,904,332.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,851,409.80 : 1,898,777,114.70 = 852,602,888.20 : x
  2. Step 2: Convert to fraction form
    1,265,851,409.80/1,898,777,114.70 = 852,602,888.20/x
  3. Step 3: Cross multiply
    1,265,851,409.80x = 1,898,777,114.70 × 852,602,888.20
  4. Step 4: Simplify right side
    1,265,851,409.80x = 1,618,902,852,041,282,816
  5. Step 5: Solve for x
    x = 1,618,902,852,041,282,816/1,265,851,409.80
  6. Step 6: Final answer
    x = 1,278,904,332.30

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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.