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Finding the Fourth Proportional to 1,262,216,495.76, 1,742,031,800.64 and 726,357,148.26

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Solution

The fourth proportional to 1,262,216,495.76, 1,742,031,800.64 and 726,357,148.26 is: 1,002,472,440.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,216,495.76 : 1,742,031,800.64 = 726,357,148.26 : x
  2. Step 2: Convert to fraction form
    1,262,216,495.76/1,742,031,800.64 = 726,357,148.26/x
  3. Step 3: Cross multiply
    1,262,216,495.76x = 1,742,031,800.64 × 726,357,148.26
  4. Step 4: Simplify right side
    1,262,216,495.76x = 1,265,337,250,891,103,232
  5. Step 5: Solve for x
    x = 1,265,337,250,891,103,232/1,262,216,495.76
  6. Step 6: Final answer
    x = 1,002,472,440.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.