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Finding the Fourth Proportional to 1,260,698,555.03, 1,893,917,613.92 and 912,020,114.93

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Solution

The fourth proportional to 1,260,698,555.03, 1,893,917,613.92 and 912,020,114.93 is: 1,370,106,242.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,698,555.03 : 1,893,917,613.92 = 912,020,114.93 : x
  2. Step 2: Convert to fraction form
    1,260,698,555.03/1,893,917,613.92 = 912,020,114.93/x
  3. Step 3: Cross multiply
    1,260,698,555.03x = 1,893,917,613.92 × 912,020,114.93
  4. Step 4: Simplify right side
    1,260,698,555.03x = 1,727,290,959,901,240,064
  5. Step 5: Solve for x
    x = 1,727,290,959,901,240,064/1,260,698,555.03
  6. Step 6: Final answer
    x = 1,370,106,242.30

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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.