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Finding the Fourth Proportional to 1,302,299,127.04, 1,797,172,382.92 and 715,626,054.40

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Solution

The fourth proportional to 1,302,299,127.04, 1,797,172,382.92 and 715,626,054.40 is: 987,563,728.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,302,299,127.04 : 1,797,172,382.92 = 715,626,054.40 : x
  2. Step 2: Convert to fraction form
    1,302,299,127.04/1,797,172,382.92 = 715,626,054.40/x
  3. Step 3: Cross multiply
    1,302,299,127.04x = 1,797,172,382.92 × 715,626,054.40
  4. Step 4: Simplify right side
    1,302,299,127.04x = 1,286,103,381,465,685,504
  5. Step 5: Solve for x
    x = 1,286,103,381,465,685,504/1,302,299,127.04
  6. Step 6: Final answer
    x = 987,563,728.46

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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.