Home / 905,518,228.52-1,249,620,400.70-509,037,746.96

Finding the Fourth Proportional to 905,518,228.52, 1,249,620,400.70 and 509,037,746.96

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Solution

The fourth proportional to 905,518,228.52, 1,249,620,400.70 and 509,037,746.96 is: 702,475,039.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,518,228.52 : 1,249,620,400.70 = 509,037,746.96 : x
  2. Step 2: Convert to fraction form
    905,518,228.52/1,249,620,400.70 = 509,037,746.96/x
  3. Step 3: Cross multiply
    905,518,228.52x = 1,249,620,400.70 × 509,037,746.96
  4. Step 4: Simplify right side
    905,518,228.52x = 636,103,953,327,580,416
  5. Step 5: Solve for x
    x = 636,103,953,327,580,416/905,518,228.52
  6. Step 6: Final answer
    x = 702,475,039.48

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Double scale
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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.