Home / 717,509,931.20-1,076,264,896.80-654,020,446.40

Finding the Fourth Proportional to 717,509,931.20, 1,076,264,896.80 and 654,020,446.40

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Solution

The fourth proportional to 717,509,931.20, 1,076,264,896.80 and 654,020,446.40 is: 981,030,669.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,509,931.20 : 1,076,264,896.80 = 654,020,446.40 : x
  2. Step 2: Convert to fraction form
    717,509,931.20/1,076,264,896.80 = 654,020,446.40/x
  3. Step 3: Cross multiply
    717,509,931.20x = 1,076,264,896.80 × 654,020,446.40
  4. Step 4: Simplify right side
    717,509,931.20x = 703,899,248,249,785,856
  5. Step 5: Solve for x
    x = 703,899,248,249,785,856/717,509,931.20
  6. Step 6: Final answer
    x = 981,030,669.60

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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.