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Finding the Fourth Proportional to 909,975,688.60, 1,364,963,532.90 and 909,975,688.60

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Solution

The fourth proportional to 909,975,688.60, 1,364,963,532.90 and 909,975,688.60 is: 1,364,963,532.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,975,688.60 : 1,364,963,532.90 = 909,975,688.60 : x
  2. Step 2: Convert to fraction form
    909,975,688.60/1,364,963,532.90 = 909,975,688.60/x
  3. Step 3: Cross multiply
    909,975,688.60x = 1,364,963,532.90 × 909,975,688.60
  4. Step 4: Simplify right side
    909,975,688.60x = 1,242,083,630,764,566,272
  5. Step 5: Solve for x
    x = 1,242,083,630,764,566,272/909,975,688.60
  6. Step 6: Final answer
    x = 1,364,963,532.90

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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.