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Finding the Fourth Proportional to 893,626,733.80, 1,340,440,100.70 and 618,127,719.40

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Solution

The fourth proportional to 893,626,733.80, 1,340,440,100.70 and 618,127,719.40 is: 927,191,579.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,626,733.80 : 1,340,440,100.70 = 618,127,719.40 : x
  2. Step 2: Convert to fraction form
    893,626,733.80/1,340,440,100.70 = 618,127,719.40/x
  3. Step 3: Cross multiply
    893,626,733.80x = 1,340,440,100.70 × 618,127,719.40
  4. Step 4: Simplify right side
    893,626,733.80x = 828,563,182,437,997,312
  5. Step 5: Solve for x
    x = 828,563,182,437,997,312/893,626,733.80
  6. Step 6: Final answer
    x = 927,191,579.10

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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.