Home / 752,931,509.80-1,039,168,762.86-627,284,465.32

Finding the Fourth Proportional to 752,931,509.80, 1,039,168,762.86 and 627,284,465.32

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Solution

The fourth proportional to 752,931,509.80, 1,039,168,762.86 and 627,284,465.32 is: 865,755,268.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,931,509.80 : 1,039,168,762.86 = 627,284,465.32 : x
  2. Step 2: Convert to fraction form
    752,931,509.80/1,039,168,762.86 = 627,284,465.32/x
  3. Step 3: Cross multiply
    752,931,509.80x = 1,039,168,762.86 × 627,284,465.32
  4. Step 4: Simplify right side
    752,931,509.80x = 651,854,421,787,881,088
  5. Step 5: Solve for x
    x = 651,854,421,787,881,088/752,931,509.80
  6. Step 6: Final answer
    x = 865,755,268.98

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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.