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Finding the Fourth Proportional to 612,119,783.70, 918,179,675.55 and 612,119,783.70

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Solution

The fourth proportional to 612,119,783.70, 918,179,675.55 and 612,119,783.70 is: 918,179,675.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,119,783.70 : 918,179,675.55 = 612,119,783.70 : x
  2. Step 2: Convert to fraction form
    612,119,783.70/918,179,675.55 = 612,119,783.70/x
  3. Step 3: Cross multiply
    612,119,783.70x = 918,179,675.55 × 612,119,783.70
  4. Step 4: Simplify right side
    612,119,783.70x = 562,035,944,395,402,176
  5. Step 5: Solve for x
    x = 562,035,944,395,402,176/612,119,783.70
  6. Step 6: Final answer
    x = 918,179,675.55

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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.