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Finding the Fourth Proportional to 921,506,527.80, 1,382,259,791.70 and 921,506,527.80

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Solution

The fourth proportional to 921,506,527.80, 1,382,259,791.70 and 921,506,527.80 is: 1,382,259,791.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,506,527.80 : 1,382,259,791.70 = 921,506,527.80 : x
  2. Step 2: Convert to fraction form
    921,506,527.80/1,382,259,791.70 = 921,506,527.80/x
  3. Step 3: Cross multiply
    921,506,527.80x = 1,382,259,791.70 × 921,506,527.80
  4. Step 4: Simplify right side
    921,506,527.80x = 1,273,761,421,167,018,240
  5. Step 5: Solve for x
    x = 1,273,761,421,167,018,240/921,506,527.80
  6. Step 6: Final answer
    x = 1,382,259,791.70

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Double scale
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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.